Erin drove by herself back to the station while Halstead rode with Voight. She didn't care about what Voight had to say about them not allowed to be together. She heard the same thing over and over again. She replayed the shooting over and over again. She did everything right, she had her partner's back. That's why they had back up. She shook her head thinking about the situation. She walked up the stairs to the station and Halstead was waiting for her.
"Thank you." He said immediately.
"For what?" She smiled; she knew exactly what he was thanking her for, she just wanted to hear him say it.
"You had my back out there." He smiled.
"Well, that's why you have backup." Her smile quickly faded when she say Voight watching them.
"Erin, my office!" He yelled.
Erin rolled her eyes, "Duty calls."
"As always." Jay replied.
Erin went up the stairs and followed Voight into his office.
"How does Halstead know Alex Khan?" Voight asked.
"I don't know? Why don't you ask him?" Erin didn't even know why Voight was asking her.
"I need you to find out. He won't tell me the truth if he's in deep shit, but he will tell you."
Erin smirked, "Isn't that against the rules of partner confidentiality?"
"Erin." Voight warned her.
"Sorry, I will ask him, but don't be surprised if he doesn't tell me anything."
"Of course he will tell you, now go."
Erin walked out of Voight's office closing the door behind her. Halstead was sitting at his desk, "Did you get in trouble?"
Erin walked over to his desk and whispered, "How do you know Alex Khan?"
"I don't." Halstead's face was stone cold.
"You look like you've seen a ghost."
"I don't know who he is." Halstead insisted.
"Fine, don't tell me. But you and I both know that Voight will find out, and at that point he won't be able to help you. If you tell me now, I can help." Erin put her hand on Jay's.
Jay pulled his hand back as soon as Erin's hand touched his, "Fine, let's go."
Erin stood up straight, both because of Jay's immediate reaction to pull away from her and because she knew she needed to follow him. "Where are we going?"
"Just let's go. Do you have the keys?"
Erin held up the keys, "Yeah, but I don't know where we are going…"
"That's why I'm driving." Halstead said as he snatched the keys out of Erin's hand.
Erin was skeptical of where they were going, but she trusted Jay, but she also knew they were on the wrong side of town. This was where all of their CI's, confidential informants, were.
"Jay, why are we here?"
"I knew Alex Khan because he was one of my CI's, and for a while people have been planning a hit on me. They're trying to kill me, Erin."