When a Sara in crisis is accused of murder, it's race against time and a suspect from the past to clear her name.
While on doctor-ordered bed rest, Charlotte balances her pregnancy and her responsibilities at St. Ambrose Hospital but Mason is afraid she might never leave the hospital.
Adalind returns to Portland with revenge on her mind, while Renard tries to deal with his obsessive infatuation with Juliette.
As their investigation continues, evidence turns up that links the death to a group of Russian agents. Sam's deepest secret is at risk of coming out.
The BAU is called to two crime scenes in Los Angeles and San Diego. Although the murders appear unrelated, the team's profile posits two unsubs working together in a deadly pact.
Under the watch of a young couple, an infant dies of Shaken Baby Syndrome. Kathryn charges both of them with manslaughter. To defend them separatly, Jimmy and Alejo must represent each one of them which create tension at Brogan & Associates...moreless
Michael is upset when he learns the truth about a secret that Cassandra kept from him, and he and Nikita travel to Moscow to confront her. Meanwhile, Alex makes one final attempt to track down her her mother by sending out a coded message through a televised interview.moreless
As the arrival of the 11th Pilgrimage draws closer, Lucas forces Skye to run a risky mission so he can complete his device ahead of schedule. However, his race to defeat his father brings about unwanted exposure and redemption of another citizen. Elsewhere, Maddy attempts to use Terra Nova's barter system when the core in her plex fails.moreless
Taylor and Mira fight in the jungle where Taylor learns more about the Sixers' plans as well as information about his son. They must ultimately work together against a prehistoric enemy. Jim receives some information on the Sixer mole and locks down Terra Nova while he tries to catch the traitor. Zoe's Ankylosaur is growing too large, which forces her to make a difficult decision.moreless
A joint CIA-NCIS operation gone wrong leaves an undercover Sam missing in Sudan, forcing Callen and the rest of the team to look for him before all is lost.
The BAU is called to rural Oklahoma when women are being murdered after being tortured with sulfuric acid. Meanwhile, Reid treats JJ and Prentiss with deliberate disregard as he tries to deal with their deception regarding Prentiss' fake death.moreless
A controversial and high-risk transplant arrives at the clinic thanks to an old friend of Ben's. Mina's new love interest arouses jealous feelings in Tommy.