Kara doesn't call Alex this time. She jumps out of her window in her Supersuit, and flies over to the sidewalk she's sure Lena was standing on just a minute before.

You can't have gone far, she muses out loud, ignoring the stunned looks of the people around her.

She spins on her heels and tries to see through the crowd but it's as if the world hates her because there's no sign of Lena anywhere. She sighs in frustration and takes off, flying low and slow enough that she can observe the people below her. None of them is the person she's looking for.

How can she have disappeared that fast?

J'onn cuts Kara's little investigation short.

"We think we have a plan. We need you at the DEO now."

"On my way," she confirms, though a bit reluctant to give up her search.

But the thought of catching Lex Luthor makes its way back to the forefront and Kara knows this is the priority.

Alex arrives only a few minutes after Kara, hair all over the place and a helmet under the arm.

"You owe me," she tells J'onn as she puts the helmet on the round table where a map is laid out.

"Why," the Martian asks.

"I got a speeding ticket because you told me to hurry up," she explains.

Kara snickers and her sister glares at her.

"I'm sure your girlfriend will get you out of it," J'onn says with the hint of a smile.

Alex stares at him, dumbstruck. She hasn't told him about Maggie yet. Winn looks incredibly guilty next to him, and he steps closer to J'onn when Alex moves toward him.

"Alright, enough," J'onn says. "Let's focus. Winn gathered a team for you to lead, Alex."

"Wait, I said no helicopter," Kara interjects.

"There won't be. We're taking submarines."

"What? Since when do we even have those," Alex asks.

"We don't. The military does. I called a friend," J'onn tells them.

Kara smiles as she realizes that Lucy Lane must have done them the favor.

"You're leaving in thirty minutes. The submarines will be waiting for you on Catalina Island. Once you get to Lex's island, it's likely that our communication will be severed. He probably made sure no one but he could contact the outside world. I want him alive, agent Danvers. Is that understood?"

And though he addresses Alex, Kara knows the question is in fact directed at her. Her sister nods and walks off in search of privacy, no doubt to call Maggie and let her know about both her new mission and the speeding ticket. Kara hangs back with J'onn and Winn as he shows her where the island is situated on the map.

The island is booby-trapped; because of course Lex would do that. She realizes it as soon as she lands on the wet sand. She hears a distinct click and she yells at the men and women behind her.

Step back, step back.

She sees the terror in Alex's eyes but her sister complies nonetheless. When everyone is at a safe distance, Kara takes off as quickly as she can, and she feels the heat of the flames when the landmine goes off.

The DEO's advanced technology allows them to detect the other landmines and they cross the beach without further incident. But Kara's hope for the element of surprise is shattered.

It takes them several hours to canvass the island. Nothing is left unexplored but it becomes obvious rather quickly that no one's been here in years. The dust in the cabin is Kara's first clue. She heads back out into the forest when she hears her name being called out.

"Kara!"

It's Clark. He stands behind her in his Superman costume, fists on his hips.

"Kal-El? What are you doing here?"

"J'onn called. I'm a bit disappointed that you didn't," he says, slightly reproachful.

She lets him come closer but her eyes refuse to meet his. When he speaks again, his voice is soft.

"I'm sorry. About Lena, and the others. I know she was your friend."

She doesn't tell him she saw Lena in the streets. He'd look at her with pity and concern and that's about the last thing she needs right now. Clark mistakes her silence for sadness and he hugs her tightly. Kara lets him. She even hugs back a little, because she did miss her cousin and she feels a bit awful for dodging his calls.

"Come on, let's go. There's nothing useful here," Clark says after a moment.

Kara nods and they join the DEO agents waiting by the water. Once everyone is accounted for and is ready to head back, Supergirl follows Superman up in the air and she races him to the DEO.

She wants to go back to the prison right away and tell Lillian to shove her deal up her ass, but she knows Alex won't let her do that. Besides, maybe Lillian has more information she'd be willing to share and Kara needs to keep dangling the carrot in front of her. The deal is that carrot.

So she sits back and powers through the useless debrief Alex does, as J'onn listens with a concerned look on his face. After that, Kal-El excuses himself and flies back to Metropolis after making Kara promise she'll keep in touch.

Much later, Kara is allowed to go home and she barely has the energy to fly herself there. The day has taken its toll on her and she hasn't felt that tired in months. When she enters her apartment, she heads straight to the couch and lets herself fall face first onto it.

"Ugh," she whines in the cushions.

The day has been frustrating, and her brain keeps coming back to that moment when she saw Lena. Or thought she had. Kara isn't sure anymore. She is exhausted, and perhaps there is some truth to what Alex said about her hallucinating because of sleep deprivation. Kara knows it's a possibility. And yet, it felt all too real.

Kara groans and she lifts herself up from the couch and heads to the bathroom for a long, relaxing shower. She brushes her teeth and slips into her most comfortable pajamas that smell like fresh lavender.

She collapses onto her bed and drags herself under the covers. Sleep comes quickly and she finds solace in her dreams, where she sees her parents and her childhood friends. She sees Krypton and aunt Astra.

And then she sees Lena. Lena in her office, sitting at her desk, looking beautiful as always. Lena at Kara's, looking vulnerable and shy and incredibly endearing.

Kara smashes her alarm-clock when it goes off in the morning.