A military hero who returns to the U.S. with a whole lot of trouble following him back. With nowhere else to turn, the man asks CTU to help him save his life while also stopping one of the largest-scale terror attacks on American soil.
Cast: Corey Hawkins, Charlie Hofheimer, Miranda Otto, Raphael Acloque, Dan Bucatinsky, Anna Diop, Renah Gallagher, Coral Peña, Teddy Sears, Jimmy Smits, Ashley Thomas, Sheila Vand, Tammie Marie Vaughan, Michael David Yuhl, James Moses Black, Bailey Chase, Zeeko Zaki, Bobby Akers, Lucky Harmon, Danny Hogan, Rishik Patel
Rebecca's deal to save Donovan doesn't go as planned. CTU must rely on Carter to go out into the field and facilitate an important exchange.
Andy uncovers important information about a high-ranking official, leading Carter and Donovan to team up and find out more. A reinforcement is brought into CTU to oversee operations.
Rebecca's personal and work life collide when she gets a phone call that forces her to make an important decision. Nicole confronts Carter about his commitment to their relationship and his future with the CTU.
A threat forces CTU to go on lock-down. Carter finds himself in a tense situation. Donovan reaches out to Rebecca when he faces a big decision in his campaign.
Mullins and CTU try and track down Carter. Andy is forced to do something he doesn't want to. Rebecca's interrogation techniques lead Donovan to question her judgment. Isaac turns to his friends for help.
Carter turns to Andy for help in order to get crucial evidence back in their possession. Meanwhile, Rebecca calls in someone from the outside when CTU's regular interrogation techniques lead them to a dead end.
Using a lead, Carter and CTU narrow in on an enemy's location. Meanwhile, Amira comes to a crossroads as her plan nears completion.
Carter and Grimes meeter the leader of a smuggling ring to propose a deal to find the location of the terrorists. Also: an unexpected guest visits Amira and Khasan and the investigation of the leak continues.
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 escapes from the precinct and tries arrange a meeting with Grimes to do the exchange. Elsewhere: Rebecca and Donovan try to isolate the leak while Amira and Harris battle a small problem with their plan.
When Ben Grimes demands money in exchange for the list he seized from a safe box in Khalid's compound, Carter must go back to his roots to help obtain the money.
When an attempt on U.S. Army Sergeant Eric Carter's life is made after his return home from a mission to kill terrorist leader Bin Khalid, he discovers that he and his fellow Rangers' identities have been compromised.