"You know you want to. Just look at him, he's so weak. Kill him. You know you want to do it, Zeyin."

"No! He's my friend! I won't- I can't!"

"Can you feel the adrenaline coursing through your veins, secretly and slowly deciding your every move? Let it out, Zeyin. Be who you really are, not what the world wants you to be!"

"No, I-"

A loud screech awakens everyone on the Bus. May is the first to find the source, a scared Zeyin, who is rocking herself back and forth in her bed and sobbing into her knees. Coulson and Fitz arrive next, and Coulson says something about night terrors to May, who nods her head. Then Jemma comes, followed by Skye and Ward. Jemma breaks through the three people in front of her, looking at Zeyin for two seconds and then sitting down next to her. She wraps an arm around Zeyin's shoulders.

"Zeyin," she says calmly, "what's wrong?"

"N-nothing. It was just a-a dream."

"You had a night terror," May states.

"Just, please... I'm fine. You guys can leave."

"Are you sure?" Jemma and Coulson say at the same time.

Zeyin nods, and everyone leaves, Jemma lingering just a second longer than everyone else. Zeyin sighs and lays her head on the pillow, falling into another nightmare filled sleep.

(*)

"Zeyin. Zeyin, wake up," Ward says.

"Why?" Zeyin groans.

"Coulson has a mission for us all. It may have to do with whoever was using your device."

Zeyin shoots up quicker than a bolt of lightning and runs to where the others are. She almost falls when she tries to slow down, causing Jemma to softly giggle. "Hey," Zeyin exhales. "I heard you may have a mission about the asshole who's been using my device?"

Coulson smiles. "Nah. I just wanted you to get up."

"Are you fucki- wow..."

"We need you to explain everything about the device to at least one person. You get to choose who to trust with the information."

"I told you-"

"We can't rely on only one person. If something goes wrong, we need someone else to know how to control that device."

Zeyin sighs. "I... Jemma."

Jemma looks up at Zeyin. "Wait, me?"

"Yeah."

"Okay," Coulson says. "Go down to the lab and show her how it works. Let me know when you're done."

Zeyin nods and then walks down to the lab with Jemma. She sits down at one of the lab tables, and sighs. "Can I completely trust you with this?"

Jemma nods.

"Okay."

Zeyin begins by repeating what she'd said the day before, but elaborates on it a little bit more. When she's done, Jemma asks, "Why exactly do you need it, though?"

Zeyin is silent. She goes to say something, but at that moment, the device lights up and she yells, "Shit!"

"What's-"

"Open the cargo bay doors!"

Zeyin grabs the device and starts running as Jemma opens the doors. Zeyin runs outside, only to be punched by a guy dressed in all black. The amount of force he put into the punch causes Zeyin to go flying into the air, dropping the device and painfully landing on the ground. Jemma screams as the guy walks over to the device and then he turns to her. By this time, Coulson and the rest of the team had started to enter the cargo bay and were firing at the man, but the bullets that hit him didn't do much.

Jemma's standing there, with a terrified look on her face. He is in front of her now, raising his fist, and as he's about to hit her, he gets blasted in the back. Jemma looks behind him as he turns around, revealing Zeyin still sitting on the ground, but she was different. Her eyes are brighter, she looks angry. Zeyin slowly stands up, and as the man starts charging at her, she charges back. She hits his chest, and then the two go flying up into the air, attacking each other and fighting for dominance. The man wins, and slams Zeyin into the ground. She is by the device, though, so she touches l it, and then the two go back up.

Zeyin keeps punching and kicking him, along with sending bolts of electricity through his body. She manages to get the mask he is wearing to come off, revealing the last person she would expect.

James.

Her eyes widen in shock, and he uses this to gain the upper hand, sending her into the ground again, right in front of Jemma. Jemma rushes to her, but Zeyin pushes her away. James is flying towards Zeyin, but she raises her arm, closes her eyes, and sends a bolt of lightning into his heart. He cries out, and is suddenly gone.

Jemma goes to Zeyin again. "He's gone," she says quietly. "Open your eyes."

"Hold on. I need to calm down first."

Zeyin takes a few deep breaths, and then opens her eyes, which are normal again. "Are you alright?" Jemma asks nervously. "You hit your head pretty hard... and your arm is bleeding."

Zeyin looks at her arm, which is pretty badly cut. "Hm, it's odd that I didn't feel that." She's quiet for a few seconds, and then she says, "Oh, damn, I feel it now."

Jemma is gone and back within a matter of seconds, treating her wounds and insisting that she stay in their tiny hospital room so that she can monitor her. Zeyin just stares up at the sky, processing everything that just happened. Coulson, May, and Ward are talking about something, and Fitz and Skye are watching Jemma treat Zeyin's wounds.