The remaining teams continue on the fourth leg of the race.

The contestants visit the homes of the judges.

Confronted with his mortaility via a grey pube, Fitz tries to talk legendary crooner Dexter Laine into backing his plans for the Summerwind; cashing in on his idol's name is a sure bet. And failing that - sabatoge the old guy.

The Browns return to Kody's hometown for the first time as open polygamists, and he's not sure how his childhood friends will receive them. Later, Robyn and Kody reveal the baby's name.

After disobeying the rules of student drop-offs at the front of Juanita's school, Gabrielle makes it her mission to get even with a parent volunteer who banishes her to a faraway parking lot.

Dexter is confronted with a sobering glimpse of his own potential future when a serial killer from his past makes a startling reappearance; Debra is uncomfortable in her new job; Travis struggles to keep his mentor happy, as he and Gellar prepare a new twisted tableau, ensuring Debra's next task will be a daunting one.

Alicia takes on a pro bono case where the witness quickly becomes the prime suspect, but it's Lockhart & Gardner that may be in the most jeopardy, as Will and Diane consider their futures and the firm's direction.

During Mayor Bader's birthday party, Nucky's attorney comes up with a solution that might help Nucky in his election-rigging case. With a liquor surplus likely, Jimmy and Mickey travel to Philadelphia to search for buyers while Nucky makes a surprising deal to try and get alcohol into Atlantic City. Eli is concerned over the Commodore's ability to lead.

The team chases a sadistic killer who takes women's eyes, and a new nemesis challenges Horatio.

After witnessing the worst tornado outbreak in over 50 years all the teams help with the recovery effort.

Ray takes a nervous walk down memory lane when he thinks a former student might be a new client. Meanwhile, Jessica starts working in the office of the doctor who was married to Ronnie's mistress; Tanya pays a price to be reunited with her mentor; and Lenore makes Sandee an offer she can't refuse.

Rick leads the group out of Atlanta. On the highway, they are stopped by a threat unlike anything they have seen before. The group searches for someone who has gone missing.

After a last minute change sends the crew on a flight to Rangoon, a routine courier mission for Kate turns harrowing as she struggles to make a drop by the deadline. Meanwhile, Maggie takes naive Laura under her wing and shows her the wilder side of the city; and news of a space mission leads Ted to reflect on his own past and what his powerful family connections have cost him.

Abby and Lina investigate the apparent suicide of a police officer and sexual-abuse allegations against the department chaplain. Meanwhile, Mackie and Abby's brothers plan a surprise birthday party for Abby and argue over whether to invite Danny or Brody.

Despite misgivings, the Brody family prepares to step into the spotlight with an exclusive television interview; at the CIA, Carrie and her team close in on an Al Qaeda plot to fund a terrorist attack on the U.S.

Ben hopes a seemingly meaningless job for Nancy will lead to bigger things; Cam angles for a piece of Domingo's business for some extra cash to afford his own place; a video shoot for Rasta Monsta helps Rene get closer to Debbie; Rachel hears a tip about Ben's romantic status.

Joseph Serf has started his new SerfBoard, which is a must-have computer that no one can resist owning. Sarah Jane, Luke and Sky attempt to find out what's so compelling about Serf and his business.Clyde and Rani dismantle a SerfBoard, believing that alien technology could be behind it.

A team of rowers encounter three fans of the Listener crossword in the second of the quarter-finals. They compete to draw together the connections between things which, at first glance, seem utterly random, from Steiff to Veuve Clicquot to Deutsche Grammophon to Boddingtons.

Joe is desperate to show Maggie that he is a changed man and that he is the macho husband she wants. Maggie plans to return to Bude after she gets the all clear though. Joe ends up resorting to desperate measures to convince her not to leave including paying people to be nasty to her so he can step in and assert his authority. Martin has to rescue the local school caretaker after he gets into trouble. Ruth finds a chest of family heirlooms as she clears out a barn at the farm. Louise isn't happy when Martin thinks about signing their son up for boarding school. After Louise finds out that Martin has set a date for their son's christening without consulting her she ends up moving out and going back to her mum's house.

Alice turns 30. The three have a drug-addled threesome. Alice gets pregnant. She and Mitch decide to get rid of it. Mitch changes his mind. Mitch and Richie race to stop Alice at the clinic. More happens but that would spoil it before you see it.

Mitch and Richie use drugs as a force for good and put up all the flatpack furniture in the nursery while high as a kite.

The third in the 25th series, with team captains Noel Fielding and Phill Jupitus. Host this week is Lorraine Kelly and guests are Jarred Christmas, Professor Green, Stacey Solomon and Tony Law.

A masquerade dinner turns deadly for the guests.