Olivia was looking at Annabelle with a strange look on her face. "You're... my daughter?"

Annabelle exhaled. "Yeah. And I've probably broken a hundred time travel rules by telling you that. Not that there are any actual rules, but you and Dad were very specific about what I was to tell your past selves. And I think telling your 2012 self that you're going to get pregnant and married soon really fucks things up - I'm sorry. But I just need to get home."

"Okay. We can work on that. Just let me go talk to my boss for a second, okay?"

Annabelle nodded and Olivia left the room. Broyles was waiting for her outside.

"Do you believe her?"

Olivia let out the breath she had been holding. "I don't know. I mean, we've seen so many things over the past few years. Who says that in 26 years time travel isn't an option? And Broyles - she just feels so familiar. I feel like I know her. It's hard to explain, but I think we need to follow this through."

Broyles nodded. "They took the cylinder to the lab. Take her there and see what happens."

"Thank you," Olivia said as she opened the door and went back into the room. Annabelle looked up with a pleading look on her face.

"Come on," Olivia said. "Your tech is at the lab."

Annabelle looked relieved. "Thank you."

"Hey guys," Olivia said as she walked into the lab, Annabelle following behind her.

"Olivia! How wonderful to see you. Do have any idea what this is?"

Olivia looked at the small metal cylinder that Walter was holding. "Yeah. I have an idea."

Annabelle walked up to Walter and held out her hand. "May I?"

Walter looked at her confused, and then at Olivia. She nodded, and he placed the cylinder in Annabelle's hand.

Annabelle wrapped her hand around it and stepped back from Walter. She took a chain from around her neck, revealing a strange shaped charm at the end. She took the charm and inserted it into a matching shaped hole on one end of the cylinder.

But nothing happened.

"No. No no no." Annabelle stared at the object in her hands. She pulled out the necklace and then put it in again, but still nothing. "It's dead. The screen should be lighting up and working but it's not, it's dead, it used up all the energy. " She looked up at Olivia with a distraught look on her face. "I'm stuck here. I... I don't know how to get home."

"Can someone please explain to me what's going on? Who is this?"

Olivia glanced at Annabelle, and then turned to Peter. "She's our daughter."

"What?"

Olivia looked back at Annabelle. Annabelle sighed.

"My name is Annabelle Astrid Bishop. I was born in Boston on April 4th, 2013 to Olivia and Peter Bishop. In 2038 they asked for my help. They needed me to go back in time to 2025. But I went too far back, way too far back, and ended up before I was even born. And now I can't get home."

Peter stared at her with a sort of shocked look on his face. Then he turned and stared at Olivia. Olivia shrugged.

"I don't know Peter. I really don't know."

Astrid was looked at Annabelle with a half smile on her face, and then turned to Olivia. "Annabelle Astrid?"

Olivia smiled at her friend. "Of course."

Walter had listened to Annabelle's story, but was focused on more on the device in her hands. He walked up to Annabelle, who had sat down in a desk chair, and stood beside her.

"May I see that again? And your necklace?"

Annabelle handed the cylinder and necklace to Walter. "You made it, you know. In 2038, you came up with this technology to travel in time. But it only work within the person's time stream."

"Yes, that makes sense. Gives it a distinct parameter to work with, if you understand that it can really only be used to go in the past since -"

"- Unless you know the day you die, you don't really know when your time stream ends."

Walter smiled at the girl. "Yes, exactly. Now, what kind of energy does it use?"

"Time energy," she replied.

"Time energy?"

"Yes. You and Dad figured out a way to harness the time energy and use it to power the device."

"How interesting!" Walter turned to Peter and walked over to where he and Olivia were standing. "Peter, look at this. A working time travel machine! Belly and I had theories about something like this..."

Olivia watched the men as they walked over to one of the computers. She heard her phone ringing and pulled it out of her pocket. "Dunham," she answered, but the call had already been disconnected.

"Thought it was worth a try," Annabelle said quietly, holding her phone.

Olivia raised her eyebrows. "I have the same phone number 24 years in the future?"

"Apparently," said Annabelle as she slouched into the chair.

Olivia frowned, and walked over the girl. "Look, Annabelle, I know this is all confusing and strange but we're going to try to get you home -"

"But what if I can't? What if the tech is dead for good and I'm stuck here? I mean, nothing against you guys, and 2012 is great and all, but I'm not supposed to be here. Me being here just... messes with time. I don't know how, but I know it's not right. And, I'm sure you guys are great, I know you guys are great, but you're not my parents. My parents - they call me Annie, they know that my favourite food is a grilled cheese sandwich, they told me stories about their fringe cases instead of fairytales at bedtime, they - they're not you. Not yet. And - I just need to go home. Before something bad happens."

"We will get you home Annabelle. I promise we will try everything we can to get you back where you belong."