Four years ago, Jack was a fugitive from justice. Now an exile, he nevertheless is willing to risk his life and freedom to avert yet another global disaster. Tracking Jack are CIA head Steve Navarro; CIA agent Kate Morgan, who is both resourceful and ruthless; Jordan Reed, a smart and sophisticated CIA computer tech; and Erik Ritter, a sharp, strong and arrogant field operative. Calling the shots is James Heller, now President of the United States. Heller is flanked by his Chief of Staff Mark Boudreau, who is married to Heller's daughter - Jack's former flame, Audrey. Meanwhile, a hardened Chloe O'Brian, Bauer's CTU confidante, is now working underground with high-profile hacker Adrian Cross.

After Roman and Drake discover the Trags are building a bomb known as a Suvec, they realize they need help and turn to an unexpected source - Grayson. Emery enlists Sophia and Lukas to help them smuggle the Suvek out of the sector, which ultimately puts all of them in danger. Meanwhile, Teri continues her mission.

The remaining celebrities and their partners take to the floor once again hoping to impress both the judges and the viewers at home.

When Caroline discovers that Max didn't graduate high school by failing to show up for only one exam, she decides to help her best friend get her degree - and reconnect with her estranged mother.

The top 8 perform vying to get through to the next stage of the competition.

Lowell joins Bobby and Will for a boys' night of debauchery, and Kate insists that Jules gets special treatment because she's hot. Meanwhile, Andi becomes insecure when she discovers that Bobby has Playboy models as patients.

Russell realizes his alliance with The Founder was a mistake, and tries to make up for his decision by saving Cara from an Ultra ambush. Stephen understands that he must be the one to stop The Machine and the extermination of humanity, but he fears he may be too late. Russell offers up a plan to help Stephen, but he is going to need everyone's help, including John and Astrid, if they are going to have any chance to survive. Meanwhile, Jedikiah offers John an interesting opportunity that could have them working together again.

Four years ago, Jack was a fugitive from justice. Now an exile, he nevertheless is willing to risk his life and freedom to avert yet another global disaster. Tracking Jack are CIA head Steve Navarro; CIA agent Kate Morgan, who is both resourceful and ruthless; Jordan Reed, a smart and sophisticated CIA computer tech; and Erik Ritter, a sharp, strong and arrogant field operative. Calling the shots is James Heller, now President of the United States. Heller is flanked by his Chief of Staff Mark Boudreau, who is married to Heller's daughter - Jack's former flame, Audrey. Meanwhile, a hardened Chloe O'Brian, Bauer's CTU confidante, is now working underground with high-profile hacker Adrian Cross.

Celebrate Cinco De Mayo with Richard, Aaron, and the Gas Monkey crew as they count down their Top 50 favorite moments. From weird cars and wild stunts, tough builds and celebrity guests - what will be #1?

Kelly tries to save her grandmother, who is trapped in a soap opera.

Molly sees Carl attempting to sneak out of Victoria's room late at night and has to decide whether to tell Mike about it.

The final challenge of the season, see's the remaining contestants take part in RuPaul's new music video for the song 'Sissy That Walk'.

Swampers push into the outer limits of their territories to fill tags. One team hangs maggot-ridden bait on his property line to coax neighboring gators to his lines. A second team travels deep into their territory to stop a gator that has been destroying a local fisherman's nets-while another loses half their day fixing their airboat and must race daylight to salvage their day.

Liz now knows the truth about her father and refuses to work with Red. Red brings a compelling case to the FBI. Liz reveals what she has learned about Tom's life.

A loyal warrior seeks a magical elixir to cure his Princess of the dreaded "cold disease".

Two brothers battle for control of a kingdom with unique values about life and death.

A secret investigation conducted by Beckett related to her mother's murder goes awry when a man she has been surveilling is killed. When evidence links Beckett to the victim, she and Castle become the targets of a manhunt that puts both of them in grave danger.

Louie has a typical day.

A tragic event from the past haunts Norman; Norma tries to prevent Norman from making a terrible mistake; Romero and Dylan find a way to end the drug war; Emma makes a decision about her future.

Huey's new weave cream is about to make the Freemans break bad.

Louie does a benefit show.

Mariano Rivera

Julie Bowen, Billy Eichner, Ziggy Marley

Edward O. Wilson

Tonight Jimmy's guests are actor Bryan Cranston, actress Brie Larson and director Kevin Delaney.

Shailene Woodley, Peyton Manning

3 celebrity contestants compete to determine who has the funniest take on the day's pop culture.

Seth was joined by Mindy Kaling and Jenna Elfman, plus music from Young the Giant.

Elisabeth Moss, Tom Felton

Just 10 aprons remain for the 18 remaining aspiring home cooks.The contestants are put through their paces in a core skills invention test, then, contestants must recreate George Calombaris' superb lemon lime and bitters dessert.

Despite being on probation, Zosia is determined to move on and show Sacha she can keep up with the rest. But when an unusual patient raises her suspicions, can she prove that she has learnt from her past mistakes?

After spotting Tommy Lee Royce, Catherine is determined to find him and comes close to busting the kidnapping plot in the process. Kevin, who is overcome with guilt at seeing Nevison's despair, confesses everything to his shocked wife Jenny, who urges him not to take anymore money from Ashley. However, Kevin is reluctant to say no to money when they are in desperate need of it. Catherine becomes distressed when her ex-husband Richard continues with his refusal to accept Ryan.

Ciro Di Marzio, right hand man of clan boss Pietro Savastano, and Ciro's fatherly friend Attilio set fire to Salvatore Conte's home to cut Salvatore down to size - him, the ruthless upcoming contender on the Savastano clan's turf.

Ciro knows the time for revenge has not yet come, for the next major problem he has to deal with is always waiting around the corner. Like the bust of the Savastano cocaine shipment at the port of Naples where the whistleblower must be found.