The remaining eight dancers will be paired with new partners for this week's performances. Guest Judges include comedian and talk-show host Ellen DeGeneres and Emmy Award-winning choreographer Mia Michaels.

After a final L.A. performance from the Beale Street Flippers wowed the judges and audience, the last 15 minutes of this episode was padded with a "Susan Boyle Daring To Dream: A Meredith Vieira Exclusive" interview from London.

When the father of a hospitalized martial arts fighter asks Nate for help, the Leverage team tries to con the corrupt fight promoter.

Teddy meets his ex-wife Julia and tells her about his journey to Kosovo where he tried to get Serbians and Albanians to work together, but learned that the hatred runs deep.

Ty goes undercover to search for a gun trafficker, but nearly blows his cover by breaking a crucial rule and seeing his wife on her birthday. Carter must come up with $100,000 to keep Ty's mission protected... and to save his life.

Tension within the Cancun house has reached an all-time high when Joey attempts to send Ayiiia home.

Michael and Michael decide to buy their boss marijuana for his birthday.

Actor Kevin Nealon from "Weeds"

Tonight Stephen welcomes the author of Free: The Future of a Radical Price, Chris Anderson.

When a group of students are lured into being drug traffickers, TR races to stop them. In his desperate attempt to save the kids, Lawson is told by Kerry that in doing so, he risks compromising a federal investigation.

Leon's girlfriend Nina has to be rescued by Josh, when she falls off a tall building whilst trying to impress Leon via a web cam.

Meanwhile Kerry is having trouble coming to terms with her impending divorce.

The team re-investigate the death of respected journalist Peter Edelmann when it looks like he didn't commit suicide like it was first claimed. It looks like he might have been killed by the US government to stop him publishing details of a UFO crash close to one of their military bases. As the team investigate they find out there is a much more shocking cover up going on.

Host Dara O'Briain is joined by regulars Frankie Boyle, Hugh Dennis, Russell Howard and Andy Parsons and special guests Greg Davies and Lucy Porter