Kara and Alex were in a bitter argument over the upcoming wedding. "Why can't you be happy for me?" Alex asked.

"It's not you. I'm not happy about anything," Kara told her.

"Why don't you dye your hair black, get a black suit, and go full emo?" Alex asked her.

"Maybe I will," Kara said thoughtfully.

"I want your tolerance and understanding," Alex said hurt.

"I do tolerate and I do understand, Alex. What you want is acceptance, and I am not going to do it," Kara said.

"Because we're gay," Alex assumed.

"No, because Maggie is the wrong person for you," Kara said sitting in her chair.

"And who is then?" Alex asked rhetorically.

"No one is. You'd be better off single. It will help you with your job," Kara advised.

"My job. Is that all I am?" Alex wondered.

"Well, yeah," Kara said confused by the question.

"What about my happiness?" Alex asked.

"Not in the cards," Kara replied coldly.

"This is about Mon, isn't it? Because he's gone and you're miserable, you want me to feel miserable, too," Alex surmised.

"You're projecting too much. I have nothing to lose or gain from you being with Maggie," Kara said.

"I want a life outside of work. I want a family. I want to be happy with Maggie. I have never felt this way before in my entire life. It just makes sense to me," Alex said to her.

Kara stood up and gave Alex an apathetic gaze. "Without condoning...or condemning, I understand."

Hank then entered the apartment interrupting their fight. "I'm going to be gone for a few days. I need you two to manage the DEO while I am gone. By that, I mean you're in charge and I need you to still be my weapon."

"Where are you going?" Alex asked.

"Mars," Hank said grimly. "M'gann sent me a message. She needs my help."

"It could be a trap," Alex warned.

"I agree, let her die," Kara said.

"Damn, maybe this is an opportunity we can't pass up," Alex said backtracking. "If you go, Kara goes with you."

"I can't have Kara fighting my battles," Hank objected.

"I agree," Kara repeated.

"No, we're a family. You're like our weird black alien uncle," Alex said to him.

"How about I'm your boss, and I've made my decision," Hank said resolved.

"If you die, I am your successor. You should take my opinion into account," Alex argued.

"Do I get a say in this?" Kara wondered.

"No!" Alex shouted at her.

"I can't take Kara away from your bridal shower," Hank said.

"No, take her. It's alright," Alex said eagerly. "Besides, I can have some time to train and mentor my son."

Kara eyed Alex and then back to Hank. "Mars is a near-vacuum. I can live for a short time in space without oxygen but even I have limits."

"This shouldn't take too long. It's a fact-finding mission. We find out what the problem is and then assess the situation," Hank said to her.

Hank and Supergirl walked up to a garage and inspected a brand new looking 1958 Chevrolet Impala. Kara strained her eyes as she looked over the engine inside. "It's in working order," she said impressed.

"Of course it is," Hank smirked. "Get in."

Kara did so without question. "You're not surprised at all?" Hank questioned.

"I know better than to question the great J'onn J'onnz," Kara replied.

Hank didn't detect any sarcasm in Kara's tone. "Well, good," he said as he messed with the dials. The car then transformed into a spaceship and flew out of the garage into space.

"I bet you're wondering why I never used this for our other missions," Hank said conversationally.

"No," Kara replied.

"Well...damn, the reason is that I just got it fixed recently. If you ever find yourself needing oxygen, you can come back to the ship, get a good breath, and then come out again," Hank said.

"I appreciate your concern," Kara replied.

"What kind of music you like?" Hank asked.

"Music that is old as you," Kara answered.

"Oh really? Fuck you, too," Hank smiled as he turned on some oldies.

Before Maggie was to show up, Alex had a heartfelt conversation with her mother, Eliza. "She doesn't approve of the wedding. She doesn't like Maggie," Alex said frustrated.

"You can't make someone like someone else," Eliza advised.

"It's not just that. She's bitter, cold, selfish, and doesn't seem to care," Alex said.

"That sounds like our Kara," Eliza smiled.

"It's different now. She used to troll me and insult me to get a rise out of me. She smiled and laughed. Now, there's nothing," Alex said.

"She's lost her true love," Eliza said understanding.

"Mon? He was just a fuck-buddy to her. She ordered him around like a dog and treated him as expendable at every turn. Those two were not in love," Alex refuted.

"Sometimes, we don't know what we've lost until its gone," Eliza told her.

Hank and Kara toured around the underground caves of Mars looking for M'gann. Hank was using his link with M'gann to find her in the maze. Kara was holding up well as the two hiked around. They finally encountered M'gann alone in the caves.

"Is it her?" Hank asked Kara.

Kara gave him an uncertain look for a few moments. "Yes," she said with some uncertainty.

"If this fool is afraid of White Martians, he came to the wrong planet," Till'all interjected coming to M'gann's side.

"I'm J'onn J'onzz. I'm the mother-fucker you don't fuck with," Hank challenged.

"Till'all is one of our best fighters," M'gann introduced.

"That's funny because he looks like a bitch," Hank said to his face.

Till'all shook his head dismissively and walked off. "This is N'keyy," M'gann continued.

"It's an honor to meet you," she said gushing.

"Honor is all mine," Hank said giving her a warm smile.

"Let's get moving. We already wasted a day bringing him here," Till'all said scornfully.

"Supergirl," Hank requested.

Kara went up to Till'all, grabbed him by his tunic, slammed him against the cave ceiling, and then threw him to the ground. "Thank you," Hank said appreciatively.

"Let's not fight," M'gann said as the other White Martians got into fighting stances.

"Why are we here?" Hank asked impatiently.

"There's still a camp for Green Martians that is still in operation," M'gann revealed.

"But I am the last of my kind," Hank said confused.

"There is one prisoner still left," M'gann told him and then showed him live footage of an older Green Martian. "Do you know him?"

"Yes, he's my father," Hank chocked.

Hank was noticeably pissed-off as he considered the revelation that his father was still alive. "What kind of ridiculous shit is this? You kept him alive for centuries making him think he was the last of his kind. You're all fucked up. I'm going to kill every last one of you mother-fuckers," Hank ranted.

"So...why is he is not dead?" Kara asked curiously.

"He knew the location of the staff of Kalor," M'gann said calmly. "We got him out before they could get the information out of him, but he won't tell us."

"That's just a fairy tale," Hank disputed.

"The White Martians are already digging around Mars looking for it. It's real," M'gann told him. "We need to know where it is before the White Martians dig it out."

"What can this staff do?" Kara asked.

"It's a psychic weapon," N'keyy said.

"If we do not find the staff first, the resistance is finished," Till'all said grimly.

J'onn entered his father's cell and found him meditating. "I'm praying. Leave me be," he requested of J'onn.

"I think we need to talk," J'onn said to him. "It's me, father. It's J'onn."

J'onn's father, M'yrnn, put his gloved hand on J'onn's face. "You really thought such a trick would work on me. If you think you can exploit my dead son's form, you're mistaken."

"I will never tell you where the staff of Kalor is," M'yrnn said defiantly.

"Father, it's me. I fled to Earth. I survived," J'onn said losing patience.

"No son of mine would have fled," M'yrnn replied.

"I don't have time for this shit," J'onn said and then dragged M'yrnn's ass out of his room.

After Hank had beaten his father's ass a couple of hours, he regrouped with Kara. "He's a tough old bastard," Hank remarked. "I have thrown everything I have at him."

"I'll talk to him next," Kara volunteered.

"Be my guest," Hank allowed. "What do you think your parents would think of you if they were still around?"

"My parents loved me in their own way. They were happy even as they faced challenges and tragedies. They couldn't understand why I believed differently from them," Kara said vaguely.

"My father thinks I'm a coward," Hank said bitterly.

"There was once a man that denied his king three times to save his own skin. He let his king die, and he did nothing to stop it. He wasn't even there at the execution. Instead, he fled," Kara said.

There was a long pause between them. "And the point?" Hank asked.

"Oh, he came back to lead his followers and in his dead king's name, he established the largest empire the world had ever seen," Kara said to him.

"I won't be creating any empires," Hank scoffed.

"J'onn, you already have," Kara said pointing out the White Martian resistance. She then walked up to M'yrnn who was still praying.

"See what I have seen," Kara said to him.

M'yrnn reached out to her as she saw the impossible. He saw Mars' oceans reappear, green forests cover the land, and a blue sky. He saw races of every kind walking together in harmony inside large cities. He could see Green Martian children walking with their parents.

"What is this?" M'yrnn wondered.

"One possible future...if you give us the staff of Kalor," Kara told him.

Metropolis

Maggie felt sick to her stomach as she approached a greyhound bus. Her father, Oscar Rodas, came out. He was a man in his fifties, a retired Sheriff. He looked around and was startled to see Maggie. "If I knew you were coming, I would have picked you up at the airport," Maggie said.

"The bus is fine," Oscar said awkwardly.

"Is mom...coming?" Maggie asked.

"No, she couldn't come," Oscar said with a pained look on his face.

"Are you hungry. We could get a bite to eat," Maggie offered.

"It can wait. I better check in with the hotel," Oscar rebuffed her. "So, you're a homicide detective. You've cracked a lot of cold cases. Very good."

"You follow my work?" Maggie wondered.

"Well, I can Google," Oscar said. "I follow all of your cases, the one's published online anyway."

"I remembered everything you taught me," Maggie told him.

Mars

M'yrnn glared at Kara. "You think you can fool me with your false memories?"

"Well, I tried," Kara shrugged.

"It's time we stripped the information from him," Till'all said.

"We can't," M'gann objected.

Till'all punched M'gann across the room and gathered the others to his side.

"Supergirl," Hank requested of her.

Kara stared down the White Martians but the fight went poorly as she was hit several times. Kara started breathing heavily as she over-exerted herself.

"Well...shit," Hank said picking Kara up and dragging his father through the tunnels away from the pursuing White Martians.

Metropolis

Meanwhile, the DEO gang was having a gay ol' time in Kara's apartment. Oscar was by himself drinking a beer as the others had fun with Maggie and Alex. Kon stood next to Oscar. "Did you know Alex Danvers is a DEO agent?" Kon asked.

"A what agent?" Oscar wondered.

"It's a federal agency that monitors all alien activity on the planet. They do all sorts of cool things like wiretap, collect phone records, surveillance, torture prisoners, and hold people indefinitely without a trial. They also have the coolest weaponry," Kon said.

"No kidding," Oscar said alarmed.

"Yep, and Alex is second-in-command. Her boss is actually a Martian," Kon continued.

"You don't say," Oscar said as he looked at Alex's smiling face.

"The DEO has used background checks on people they consider security threats so the IRS can bust them. They've looked into confiscating guns and declaring martial law. They bust into people's houses without warrants. Did you know their budget is expanding too?" Kon said.

Oscar gave Alex a haunted look as she went over to him. "Want a beer?" she asked.

"Thank you," Oscar said politely as he took one. Oscar then saw a board with family photos and realized none of them were of Maggie. Taking a picture out of his wallet, he pinned it on the board.

"Let's start opening presents," Eliza suggested ending the awkwardness.

Alex and Maggie sat down and started opening presents together. As they did, they gave each other a kiss. Oscar couldn't handle it and abruptly left the apartment. Maggie quickly followed him out and caught up with him as he walked down the street.

"You're just going to walk out," she asked him angrily. "After all this time, this is it?"

"I can't do this," Oscar said to her.

"What have I done that has offended you so. Is it because she's a woman?" Maggie demanded.

"No, she's a Fed. She actively works to oppress the people. For decades, I worked to keep the Feds from getting their fingers into people's lives. She's the worst of the bunch," Oscar said.

"You don't even know her," Maggie objected.

"I don't need to know her. She stands for everything I am against," Oscar said angrily.

"This is bullshit. You're just saying this because we're gay," Maggie said.

"It's not about that," Oscar said defensively.

"Then you would approve if she were a waitress or plumber?" Maggie asked incredulously.

"I didn't say that. I would tolerate it...for your sake," Oscar said.

"Tolerate? That's not what I want," Maggie told him.

"That's all you're going to get out of me," Oscar said flatly. "Look, I don't approve of what people do in their daily lives all the time but unless its a crime, I tolerate it. You can't make me or anyone else approve of this."

"If you don't approve of this, then I don't want you in my life," Maggie said angrily.

"That's what you told child protective services when you were fourteen. You told them that I verbally abused you over your sexuality. I was given a choice to either give you up to foster parents or your aunt. You destroyed your mother all because we wouldn't approve. After all this time, you can't tell the difference between approval and tolerance. I will never allow anyone to tell me how I should think. My parents left Mexico to be free of that shit and now I see it happening here," Oscar said to her.

"And you sacrificed me over your beliefs," Maggie glared at him.

"You sacrificed us for yours. Whatever happened to live-and-let-live? I put down the same rules against you dating girls as I did for boys. You wouldn't accept that. The reason why I never reached out is that when your mother died, you ignored all my calls," Oscar revealed.

"I didn't know," Maggie said softly.

"Well, now you do," Oscar said sadly. "I don't approve of you marrying some Fed that is in the business of taking our rights away. I'm sorry."

A heart-broken Maggie watched as her father disappeared down the street.

Mars

Hank dragged M'yrnn into their old house. "You dare bring me to my own home," M'yrnn said disgustedly.

"Shut the fuck up," Hank said angrily. "You're going to give me that staff or so help me, I will infect you with White Martian blood.

"You wouldn't," M'yrnn said fearfully.

"Oh, yes, I would," Hank said to him.

"I would rather die," M'yrnn said.

"I'm going to keep you alive until the final change, then I'm going to bleed you, so you can see your own White Martian blood," Hank said.

"No one has broken me as thoroughly as you have. You are my son," M'yrnn said embracing Hank.

Kara watched not sure what to make of the exchange. "You will put all the White Martians in camps and turn them Green? You will exterminate their race?" M'yrnn asked of him.

"In due time, father," Hank pledged.

"I will tell you where the staff is," M'yrnn said to him as they bonded.

The White Martian resistance came rushing in. "The staff isn't far from here. I will lead you there," M'yrnn told them.

Kara drove the 1958 Chevrolet through the caves of Mars until she came upon the enemy White Martian gathering. Turning on the radio at high volume, Taylor Swift sang "Look what you made me do."

Kara got out of the car and began firing continuous bursts of energy from her hands while firing heat vision from her eyes. The White Martians fell to the ground injured. Kara then sank to her knees as she exhausted herself. She went over to the car to transform it back into a ship when she was dragged away from it by a White Martian fighter.

Hank, M'gann, and several resistance fighters then entered the fight. With the White Martians distracted, Kara crawled towards the ship and got inside. Once inside the pressurized ship, Kara started hyperventilating as she tried to get air into her lungs.

The White Martian leader took the staff and began firing purple bursts at the resistance fighters killing a few of them. Hank and M'gann took cover as purple blasts went everywhere. Kara continued to pant as she went over to the controls. She looked over the weapon systems and targeted the White Martians. Putting her hand on the joystick, Kara hesitated to press the button. Kara aimed low blasting away the white Martian's knees dropping them.

J'onn then leaped in to attack and took the staff. He proceeded to kill every enemy White Martian in the cave. "You got them," M'gann told him as he continued to fire into corpses.

"God, that felt good," Hank smiled.

Hank, M'gann, Kara, and the rest of the resistance than met up with M'yrnn with the Kolar staff. "As a man of God, I am fulfilled seeing the staff of Kolar. I can die happy," M'yrnn said pleased.

"Well, you don't have permission to die yet. You're coming with me," Hank said to him. "Here, you have this. Kill more of your own kind with it," Hank said to Till'all.

"Fuck yeah," Till'all said taking the staff.

"Wait...we're better than the White Martians that took this staff. This is a religious artifact," M'gann protested.

"Yeah, that's some bullshit. You can moralize after you win," Hank told her.

The three of them departed for the spaceship. "They will never win," Kara said to Hank.

"I know," he replied.

"They will just continue to kill themselves now that you have given them the staff," Kara added.

"I know that too," Hank smiled as he brought his father on board.

Metropolis

Maggie watched as her father boarded the greyhound bus and disappeared down the road. Alex came over to Maggie to give her a hug. "I'm sorry things didn't work out between you two," Alex said sincerely.

"You're all the family I need," Maggie said embracing Alex.

"Oh, well, we can always have a bigger family," Alex suggested.

"I see a life where the two of us go on adventures, save the world, and enjoy life. But I don't see kids in that picture. You're all that I need. Do you not feel the same way?" Maggie asked.

"I do. Of course, I do," Alex replied and then saw Kon wearing sunglasses on a park bench across the street from them.

The Martian spaceship turned back into a 1958 Chevrolet as soon as it landed on the ground. Hank drove it back to the garage and assisted his father out of the back. "So, this is Earth?" M'yrnn said looking around.

"I know, a shit-hole," Hank said embarrassed.

"No, it's so beautiful," M'yrnn said as he saw the city lights. He looked at the ground and saw plant-life. "I haven't seen such life in centuries."

Kara and Hank smiled as M'yrnn looked all around him in amazement. "You know, I'm not sure I could have done this without you," Hank said to Kara.

"You couldn't have," Kara confirmed.

"Look, I don't know who you are or how you present yourself as long as you protect the Earth's interests. That's how I felt when I first captured Supergirl two years ago. It's how I feel about you now. Whoever you are, you've gained my trust," Hank said.

"I don't understand," Kara said confused.

"No Kara of mine would willingly play Taylor Swift...and enjoy it," Hank said to her.

"Maybe my music tastes have changed," Kara excused.

"Not even a black hole could change that. Just tell me one thing: Where is Kara Danvers?" Hank asked.

"Kara Danvers is dead. There is only Supergirl," Kara replied.

"Fair enough. I'll see you at the office," Hank said to her and then took M'yrnn with him back home.

Kara flew into her apartment and found Kon playing video games. "These games are too primitive," he said disappointedly.

Kara looked over the messy apartment from the bridal shower. "You got to party while I was on Mars. It sucked," Kara said annoyed. "There's no oxygen and even if there were the pressure is too low. I literally felt my blood boil underneath my skin."

"Well, I accomplished my mission," Kon said brightly.

"From the looks of it, you didn't," Kara said looking at all the bridal shower decorations.

"I planted the seed," Kon smirked.

"We cannot merely tolerate this relationship. It must be destroyed," Kara told him.

"I know," Kon agreed.

"We now have two Martians to contend with. We must be on our guard," Kara warned him.