As Castle and Alexis travel to London, their routine flight turns deadly when the planes Air Marshal is found murdered. With the help of Beckett on the ground, Castle and Alexis race against time to find the killer before he carries out his fateful plan.
Andrew heads to Rome for tastes that stand the test of time. He feasts on lamb brains and veal intestine in the shadow of an ancient dump, eats cheese aged in millennia-old caves, and nets eel with Rome's last eel fisherman.
Romero confronts Norma about newly learned information Caleb and Dylan take a risky job.
With Joe Carroll's execution day upon them, the team remains on edge, expecting that he won't go easily. Their fears are realized when a hostage situation at the prison forces Ryan to go in alone, as the whole world watches.
Larry becomes an acting part-time villain as he substitutes for the ailing Rippen. The team's mission is endangered when Penn takes pity on Larry.
Elijah and Freya think differently about how to deal with Dahlia's deadline.
Penn Zero is not your average kid - every day he's zapped into another dimension with his friends to save the world.
Beth desperately fights for her life after her deranged stalker drags her to a remote cabin in Ojai, leaving Jack and Janice to frantically search for clues to their location. Also, the TAU waits for updates on Ben's prognosis after he was shot.
The queens perform in musical versions of cult director John Waters' most iconic films. With guest judges Demi Lovato and John Waters.
Jane attempts to do what's best for the baby. Xo attempts to say sorry to Rogelio.
A building collapses during a rodeo a severely injured cowboy exhibits strange symptoms Scott causes a serious car accident.
Discussing how director Christopher Nolan translates his love of science to his films with theoretical cosmologist Dr. Janna Levin and comic Eugene Mirman.
The life of the inhabitants of a remote place in Louisiana, who spend one month a year hunting alligators.
The Ogre breaks down Barbaras emotions, while Gordon and Bullock go to great lengths to track him down. Meanwhile, Penguin leads a massacre, beginning an epic war, while Bruce learns the truth about Wayne Enterprises and Nygma deals with his recent actions.
While the guys work on tearing down the '71 Cuda, Scot and Austin arrive to see if they Fired Up guys need any assistance, since they've got two big projects on their hands. Thomas and Tom flip a '51 Chevy truck. Tom also says goodbye to Little Richard.
The team attempt to find an expert sniper after they learn about his connection to an extremist group.
Max and Caroline try to break Nash into the modeling business in an effort to bring in extra money acting as his managers. Also, Sophie and Oleg attempt to keep celibate for 30 days before their wedding.
Mike meets his Aunt Rosemary for the first time and is instantly smitten by her warmth and positive attitude – which is the polar opposite of his mother