After Carter escapes from the police precinct, he must put his trust in the CTU as he plans a meet up with Grimes to do the exchange. Meanwhile, Rebecca and Donovan try to isolate the leak and Amira and Harris deal with a slight hiccup in their plan.

Grimes comes to Carter with information that might lead them to the terrorists. Meanwhile, at the Donovan compound, Nilaa is sequestered and questioned by Rebecca.

Carter and Grimes try to make a deal with the leader of a smuggling ring in order to find out the location of the terrorists for whom they've been searching. Meanwhile, Amira and Khasan get a visit from an unexpected guest, while progress is made on the leak.

Using a lead, Carter and CTU narrow in on an enemy’s location. Meanwhile, Amira (guest star Kathryn Prescott) comes to a crossroads as her plan nears completion