Four men who have been friends since high school discover they're being blackmailed over the death of another childhood friend. When one of the four turns up dead, it's up to Nichols and Stevens to uncover the truth behind a 22-year-old mystery.
After Callen's cover is blown and compromises the unit, the NCIS team races to find out who is behind the security breach.
Reports of encounters with strange beings and sightings of mysterious objects in the sky have occurred throughout history. A 13th century historical book, Otia Imperialia, includes an account of a creature descending from a flying craft over Bristol, England. The log from Christopher Columbus' first voyage to America contains a report of strange lights in the sky. Medieval art pieces depict disc-shaped objects floating in the heavens. Sightings of flying cigar-shaped crafts were reported during the Black Plague. And there were even discussions of extraterrestrial life among America's Founding Fathers. Could these sightings, coming from every part of the world, from biblical times to present day, be evidence that aliens have been with us all along?
Heidi and Spencer's behavior cause their friends and family to make a difficult choice, while Kristin and Brody hook up but agree to stay single.
Sarah and Adam argue about their daughters’ behavior; Jasmine auditions for a New York dance company.
Ben finally takes his revenge on Widmore after accepting the Man in Black's request for assistance. Jacob explains the purpose of the candidates, and Jack volunteers to take his place. The search for Desmond reveals that he has been rescued and the Man in Black plans to use him to destroy the island. In the flash sideways, each person ends up on their way to a concert.
Determined to repair the damage he's done, Raylan takes time away from his assignment bodyguarding an eccentric judge to track down an old lead.
John Luther must catch a Satanic occult killer accused of kidnap and murder. However, with a young mother's life at stake, Luther must use all his skills to build an airtight case.
Eli Gold works on getting Peter's charges dropped, and Alicia defends Colin Sweeney, a client and accused wife killer, who claims self defense after she finds him handcuffed to a dead woman.
Mike and Edd go on the hunt for the classic VW T2. When Mike decides to buy a camper, he discovers prices have never been higher, so he settles on the less-known panel van. Edd decides to completely repaint the car and uprate the engine.
As the clock ticks toward the climactic series finale, three hours remain and a ruthless Jack Bauer is on an unwavering mission to uncover the truth, which only complicates circumstances for President Taylor as she prepares for a signing ceremony. Meanwhile, President Logan comes face-to-face with a formidable foe, and Chloe leads CTU on a high-stakes collision course with Jack Bauer.
Charlie is visited by the ghosts of his ex-girlfriends while Alan and Jake are on a road trip.
Haley tries to overcome her depression by joining Nathan, Jamie and the rest of the Tree Hill gang on a trip to Utah for the premiere of Julian's film.
Cuddy, House and members of the team join forces with a search-and-rescue team to provide much-needed medical attention at the scene of an emergency.
A new employee with an axe to grind against Audrey files a sexual harassment claim against her. Meanwhile, after being teased for playing cricket, Timmy challenges Jeff to a game to prove the sport is not for wimps.
When Ted takes a date to see a new hit movie, "The Wedding Bride," he is shocked to learn the story is loosely based on his life, and that it was written by Tony, the man Stella left him for at the altar.
Nothing is as it seems when Castle and Beckett investigate what appears to be the assassination of an intelligence operative. Meanwhile, Beckett's romance with Demming threatens her relationship with Castle, forcing them to confront their feelings for each other.
Blair must decide whether to meet Chuck at the top of the Empire State Building or risk losing their future together. A Gossip Girl gossip bomb involving Dan explodes Serena and Nate's relationship. Dorota and Vanya welcome their baby. Jenny hits rock bottom. Georgina returns to the Upper East Side...and she has an agenda.