While Waverider undergoes repairs, Rip and Sara set out to attack Vandal's bank accounts but learn of the true source of his power. Meanwhile, Len convinces Jax to take him to Central City to steal an emerald, and Ray and Martin work feverishly to try and save Kendra's life.

The contestants have survived Hollywood week and it is time to find out who will continue on in the competition. Only the best of the best will make it through as the Top 24 are revealed.

Sheldon is thrilled when his Meemaw comes to visit, but his excitement quickly fades when she butts heads with Amy. Also, Raj meets a new girl at the comic book store who makes him question his relationship with Emily.

When Joan's freewheeling nephew, Mikey, comes for a visit, the family members are on edge since nobody really likes him. Also, Tyler brings Clementine, to visit his great-grandmother, Greg and Jen find a solution to their sleeping woes, and Matt takes over for Tim as Sophia's soccer coach.

In order to avoid her ex-boyfriend, Bonnie drags Christy to a new AA meeting, only to run into her ex-girlfriend, Jeanine, from 30 years ago.

Red and Liz work with the taskforce to stop a negotiator who has resurfaced to unite two rival crime families. Tom reconnects with a former flame.

Clarke wrestles with a decision. Bellamy learns that something isn't what it seems. Meanwhile, Murphy plots to betray his former Chancellor.

Amy's plan to get Allison to stop caring about "looking stupid" backfires when Allison makes a spontaneous decision that leads her to meet her soulmate before she's supposed to.

Nina Dobrev and Tim Tebow go head-to-head.

Will continues to earn the respect of his new colleagues, but when his home comes under an attack, everyone is a suspect- even those closest to him. Meanwhile, Maddie finds a way in to the upper echelon.

Harlee and Tess intercept a heroin shipment from a local drug lord who discovers Wozniak's secret and tries to use it as leverage to get his confiscated drugs back. Harlee fears Stahl's interest in her goes beyond the professional, believing he is invading her privacy, and resorts to spying on him with the help of an old friend. Tess tries to use Espada to get back at her husband.

After one of Martha's best friends is murdered by another one of her friends, Chip attempts to help her.

During the Restaurant Wars, the chefs have to open their respective restaurants for both lunch and dinner services.

TelAmeriCorp starts to sell female-friendly products and the women of the office take over.

Fred wants to do something big with his life so he moves to Austin; Carrie experiences motherhood.

Alex teams up with Cassie to free a young woman from her abusive partner, while Dawn faces a series of life-threatening complications when a patient's pacemaker malfunctions.

Holmes and Watson must search for a killer without any physical evidence to aid them after a bomb is detonated in the New York City morgue. Also, Watson is suspicious when an NYPD detective she's in a grudge match with asks her to consult on a case.

GOP presidential dropout Rick Santorum endorses Marco Rubio, Ronny Chieng examines a questionable NBA promotion, and Lilly Singh discusses "A Trip to Unicorn Island".

Michael Moore and Andrew Bird are tonight's guests.

Felonious Munk expounds on the use of the term "politically correct", and Larry discusses the GOP presidential race with Paul F. Tompkins, Ricky Velez and Franchesca Ramsey.

Jonah Hill ("Hail, Caesar!"); Megyn Kelly (The Kelly File (2013)). Also: Wiz Khalifa performs.

Stephen welcomes Michael Strahan, Samantha Bee, and a musical performance by Wilco.

Chris is joined by three celebrity guests who battle it out to determine who has the funniest take on the day's pop culture.

Record executive L.A. Reid; JoJo Performs; Russell Simins sits in with the 8G Band.

James is joined on the show by Eva Longoria, Tom Ellis and Panic! at the Disco.

Bucket's detecting skills are called into question when another body is discovered and a new inspector arrives. Hawdon goes for promotion but makes a discovery about Frances which leaves Honoria devastated.

Perez and Tosh's investigation takes them to Glasgow, where they attempt to uncover the truth regarding Maguire's death and his connection to Robbie Morton.

Harry is assigned to investigate a diamond robbery at Hatton Garden... with Steve as the lead officer. Meanwhile, Anne tries to get the truth from Kevin but runs up against an officious prison governor, and Suri discovers that Harry's big win at roulette may not be all that it seems.

Jimmy Carr hosts while Sean Lock and Isy Suttie take on Jon Richardson and Richard Osman. Alex Horne and the Horne Section are in Dictionary Corner with Susie Dent and Rachel Riley.

The ground floor of the department store is transformed into a movie set, as Double Trouble starring the Dolly Sisters and famed-actor Bumby Wallace is filmed. Harry is delighted to be the source of excitement throughout London once again, as Grove and Mardle attempt to grapple with their past - and their future. Kitty comes to a horrible realisation, and Mae reconnects with old-flame Victor. Meanwhile, Harry's mistakes catch up with him in dramatic fashion.

Stephen Fry jokes around with a messy mixture of matters with Sarah Millican, Eddie Kadi, Noel Fielding and Alan Davies.

Just as it seems that Reid and Drake have found their working dynamic once more, they are forced to engage with a difficult murder case that threatens to open old wounds.

Graham chats to Sir Elton John, who performs Blue Wonderful from his new album Wonderful Crazy Night; Hollywood stars Ben Stiller, Owen Wilson and Penelope Cruz, together in the hotly awaited Zoolander 2; and actor and comedian Jack Black, promoting fantasy adventure Goosebumps.