The last six cooks split up into teams to compete in the inaugural restaurant challenge, with the winning group advancing to the semifinals.

The Arrow and his team come to Central City to identify a boomerang used in a murder. However, they soon end up helping the Flash when he goes up against a metahuman who can drive his victims into fits of rage... . and the speedster is his next target. Meanwhile Iris finds herself caught between her boyfriend and her idol when Eddie tries to create a task force to bring down the Flash.

Eliza's effort to "follow through" on a work idea impacts her relationship with Freddy. Henry rejects an admirer, leading to unexpected consequences.

America's vote is revealed and 3 artists are eliminated from the competition.

Peter learns Dana is still friends with all of her exes.

Maya can't sleep because of her Cam/Miles nightmares. Jack reveals to Imogen that she practices polyamory. Imogen, who is usually fine with the abstract, is honest with Jack about wanting monogamy. Frankie finds disturbing comics on Hunter's computer.

Coulson is forced to divide his team, sending half of them to rescue Raina from Hydra. Meanwhile, he leads the other half to San Juan to find the entrance to the Kree city. However, gaining entrance to the city may cost them dear.

After Annie and her newly engaged dads discover that their cousin "Scooby" can only attend one of their weddings, they battle it out over whose wedding will win out.

Leona pursues the search for the missing girls. Gail makes an irreversible mistake with Wendy. Andy helps a fellow inmate.

A visitor comes to the island suggesting that he has discovered a secret method of getting to the treasure.

Jody Mills reluctantly attends a mandatory sheriff's retreat and is partnered with an overeager sheriff named Donna who wants to bond. Just as Jody thinks things can't get any worse, a body with just strings of meat and skin hanging off the bones is discovered. While the local sheriffs blame an animal attack, Jody knows better and calls Sam and Dean.

Schmidt quickly regrets trying to understand the politics of a girl fight when one breaks out between Jess and Cece. Meanwhile, Nick goes on a date with Tran's granddaughter, whom Winston believes is hiding a secret.

The buyers throw down at an auction in Koreatown. Dave is expecting to score some high end merchandise, while Darrell struggles as he has never been to this area before. Mary fights for a locker despite the high prices and Jarrod's antics may just push Brandi over the line.

Two former still hands of moonshine legend Popcorn Sutton emerge from the shadows. Tim learns that getting out of the illegal liquor business doesn't get you out of the woods. And a ton of work lies ahead for Mark and Jeff after a brush with the law.

Feeling nervous about her first real date with Mr. Chris, Fiona wants Dakota to come with her as her safety net. Will ends up tagging along as well as he attempts to woo Dakota.

Mindy is so determined to help Peter with his living situation that her own relationship with Danny gets a little complicated. Meanwhile, things go haywire for Jeremy and Morgan when they're left alone watching Lauren's baby boy, Henry.

Duelling identities of a murdered british aristocrat lead Henry and Jo to investigate New York's wealthy and working class to reveal the killer.

It's down to the wire as the Artists battle for a top 4 spot - to survive they must impress 3 tattoo heavyweights criticizing their every move.

Advice author Abby McCarthy realizes she doesn't have all the answers as she struggles with her own divorce.

With tensions mounting and truths finally revealed, Jax must make the ultimate decision.

In the Season 6 finale, Daniel goes future tripping with Doug Stanhope; and crashes a sleazy engagement party. Also: a look back at 2014's most awful moments.

A house fire sees the team attempting to save the lives of a couple trapped inside. Chief Boden prepares to start his new family. The combination of life at work and home sees Casey and Dawson drifting apart.

Nina has to accept that losing cases to Trent is going to happen. Carlos decides to stop smoking, which worries the rest of the group.

Dave Grohl

Kellan Lutz, Marc Maron, Gavin DeGraw

Tony Bennett & Lady Gaga

Tonight guests are actress Reese Witherspoon and humorist David Sedaris. Musical guest will be hip hop duo Rae Sremmurd.

Also Slow Jam the News (Brian Williams); Tonight Show Pros & Cons: William and Kate Visiting New York City; Reese Witherspoon brings Jimmy reindeer figurines; Tonight Show Random Phrase Carols (Reese Witherspoon); Rae Sremmurd performed "No Flex Zone"/"No Type".

Tom Rhodes, Greg Proops and W. Kamau Bell compete to determine who has the funniest take on the day's pop culture.

Kristen Bell, Henry Winkler

On Christmas, the Agents of S.M.A.S.H. and the Guardians of the Galaxy must break free from a simulated paradise created by the Collector and reclaim the Orb of Truth which is needed as part of a peace meeting between the Kree and the Shi'ar.

Spider-Man sees what the world would be like without him when Nightmare takes him on a journey through his past, present, and future.

Despite their parents' objections, Justin hatches a plan to keep him and Tiffany together. Rhiannon tries her hand at plus size modelling and Hector begs Sue to leave Simon.

The Vaughan-Fitzgerald household is in full lockdown following the revelation that Justin and Tiffany have been sleeping together. Justin is furious to find out he's being sent to boarding school and hatches a plan of his own to keep him and Tiffany together.

Rhiannon is horrified to see how thin the models are while visiting Gabriella's mum on a fashion shoot but wrestles with her own morals when she is invited to join in as a plus size model.

Sue is determined to put her affair with Hector behind her and looks forward to a fresh start with Simon in Wales. But when Hector hears of their plans, he makes an impassioned plea for her to stay.

At the house, it's an early morning wake-up call for the candidates as Lord Sugar knocks on the door in person to tell them that for their next task he wants to test their negotiation skills - they have just one day to buy nine items, all of which have featured in tasks over the last ten years, at the best possible prices.

The candidates scour all four corners of the capital in search of kosher chickens, nigella seeds and oud oil. A diamond deal turns into a heist and one team, searching for a human skeleton, pin all their hopes on a cunning plan.

As time ticks away, it's a race to find all of the items at knockdown prices before a sprint back to the boardroom.

The team that spends the least wins, but things aren't that simple after Lord Sugar lays down the law. The recriminations begin as the losing candidates turn on each other before one is singled out to hear the words 'You're fired!'.

Frank sees the value in having a mobster such as Tommy in the gang. However, Tommy is struggling to cope with Norway's high costs and goes behind Frank's back to earn a living. Roar is in trouble again in Brazil.