A/N Welcome back everyone! Here is the next chapter! As always point out any spelling or grammatical errors and enjoy!


DEO - Interrogation room

The Doctor was pacing the room, thinking about how he could have missed closing the engines while Martha sat at the table with her arms crossed, growing more and more impatient. After travelling with the Doctor for so long, where it was just one adventure after another, being stuck in a room for hours bored her quickly.

Suddenly the door burst open and two people walked in but Martha didn't really care who.

"Can we go now?" Martha asked with a hint of annoyance in her voice. Supergirl and Winn were shocked at the request.

"Sorry," Martha said, "I wasn't paying attention. Thanks for saving us earlier."

"Yeah, thank you," The Doctor said, stopping his pacing, "You can tell your friend Kara that she doesn't have to thank you for us."

"It's okay she already told me," Supergirl said a bit flustered, she always got flustered when she had to pretend to communicate with her alter ego, "She also played me the interview with you two, thanks for saying those things about me."

"Well it's the truth," Martha said.

"Which one of you owns the blue box?" Winn asked coming out from Supergirl's shadow.

"That would be me. I'm the Doctor," He said stick out his hand.

"I'm Winn," He said shaking hands, "How do you make wood so strong?"

The Doctor stopped shaking his hand and looked confused.

"I was tasked with getting into your box and I couldn't get in. And there aren't a lot of things I can't do when it comes to technology."

"You tried to get into the TARDIS? Oh, she's not going to like that. Why did you try and get in?"

"There was strange energy coming from it and we wanted to stop it before it could hurt anyone. Then we realized it was harmless."

"Just curious, how did you try and get in?"

"Everything from picking the lock to alien tech."

"Wow, nothing can get through those doors," The Doctor said sounding a bit impressed at himself.

"How do you get inside?"

"I have a key."

"That makes sense. Anyway, I have bigger fish to fry right now so-"

"Do you mean the alien spaces shifts hovering above the Earth?"

That statement caught Supergirl's attention dragging herself from her thoughts. It also caught Alex's attention from the viewing room.

"H-how did you know?"

"The scan I was doing earlier detected them. I'm assuming that's how you found us. We were leaving to check out a place with a lot of alien equipment, which I'm guessing is this place, so we could identify who they were."

"Why? We usually have things under control," Supergirl said, her curiosity piquing.

"The TARDIS usually takes us where we need to be," Martha said, "Or where he needs to be, I just tag along."

"So you're trying to help?" Winn asked.

"Yes, is that too hard to understand?" The Doctor said sounding a bit angry.

"It's just that people don't help or try to get in our way," Winn said.

"Well Supergirl helps out, why can't we?" Martha asked

"Do you have any idea whose ships they are?" Supergirl asked crossing her arms. J'onn joined Alex in the surveillance room, curious as to what was transpiring.

"I have a few ideas but a lot of ships are constructed in similar ways to the ones hanging out above."

Winn and Supergirl exchanged a look.

"Well I'm kind of stumped on what they could be," Winn said, "We could use your help."

"I'd love to help! Allons-y!" They all headed towards the door but the door wouldn't open.

"Hey Alex," Supergirl shouted into one of the cameras, "Could you let us out?"

Surveillance room

Alex looked up from her screen and turned towards J'onn, "Why don't you trust the Doctor? He hasn't done anything wrong."

"There's something off about him, Alex. And I don't know what."

"Is it because you can't read his mind?"

"It's something else. Why would a time traveller go around helping people? He could be trying to change the past to benefit himself in the future."

"Then why is Martha from 2007?"

"Maybe it's part of his sick plan."

"I don't think so."

"Alex?" Kara called again from the screen, "You still there?"

Alex sighed, "Can you trust me on this one? Please?"

J'onn sighed and opened the door and left the room with Alex on his heels.

Control room

"Wow..." Martha muttered as they walked into the control room, marvelling at the technology and operation they were running here.

"So Winn," The Doctor said, "What do you have so far?"

"Let's take a look," Winn said sliding into his chair and opening up some programs on his computer, "This is one of the scans we have of the unknown ships."

The Doctor crouched behind Winn and put on his glasses, "That's a pretty common type of craft nowadays," The Doctor muttered analyzing the scan, "Is there any way you can get a picture of the ship?"

"Just a second. Bingo!" Winn shouted as he pulled up a blurry photo, "We'll just run in through this software and it should clean it up!"

"Nice going Winn," Supergirl said.

"Thanks, Ka-Supergirl," Winn said catching himself but his little slip up confirmed what the Doctor already thought; Kara Danvers and Supergirl were the same person.

"Supergirl," J'onn said, "Can I have a word?"

"Sure," she said following him into a side room, "What's up?"

"I want you to keep an eye on the Doctor, there's something off about him."

"He seems pretty harmless."

"How many times has someone who 'seemed harmless' hurt us? And I can't read his mind."

"I'll make sure to keep an eye on him, J'onn, don't worry."

"Thank you."

Control Room

"You're from 2007 right?" Alex asked Martha.

"Yeah, that's right. I'm guessing you're from 2017."

"Yeah. How did you meet the Doctor?"

"That's a funny story actually. I was training to be a medical doctor when he showed up in my hospital just before it got transported to the moon."

"You were teleported to the moon."

"Not just me, the entire hospital. It turned out the rhino space police-"

"The Judoon," The Doctor cut in.

"-Were looking for an alien fugitive and he helped return us back to Earth just before we ran out of oxygen."

"That's one hell of a story, I'm guessing you've been travelling with him ever since."

"Yeah, I've gotten to see some of the most spectacular things. What about you, how did you meet Kara?"

Alex looked shocked but she tried to suppress it.

"I'm not going to tell anyone. Besides, it's not that hard to figure out. First Supergirl saves us, then Kara comes to interview us a little too quickly. Then Supergirl comes here and says Kara shared everything with her. They looked very alike, then Winn confirmed my suspicion. How did you meet?"

"My parents adopted Kara when her pod crash-landed on Earth when I was 11."

"So you're sisters then?"

"Yup."

"That's amazing!"

"Ah-ha!" The Doctor shouted grabbing Alex's and Martha's attention.


A/N Just a heads up next chapter might be a bit late because school is going nuts this week! I hope you're enjoying the fic so far!