As Hen continues to seek out a diagnosis for her mysterious symptoms, her friends and family rally behind her. Meanwhile, Harry hits a wall in his attempts to complete the academy firefighting exam and looks for some much-needed motivation.

A woman's mysterious death sets the detectives up against a suspect using high-tech surveillance against them. Maroun suspects a witness knows more about the defendant than she lets on.

The final two must overcome shortcomings and take control of their respective teams to come out on top and prove to chef Ramsay they have what it takes to win; in the end, the door can only open for one chef.

Richard continues to navigate his health. Meanwhile, Meredith and Nick are visited by Nick's estranged sister from Boston.

When a stranger threatens Rollins and Carisi's lives, they suspect it's connected to a case they worked together. Benson asks an old friend to come out of retirement for help with an investigation.

Rob Gronkowski returns and asks the team for help rehoming a Zebra. Emily and Shred's first date goes awry when they unexpectedly run into Daisy and Patel on their night out. Meanwhile, Frank must defend Templeton when Templeton is accused of dognapping.

The Faithful plan a coup and one Traitor is accused to their face; the roundtable brings difficult decisions; with the temperature in the turret at its boiling point, the Traitors must pull off the bloodiest murder the castle has ever seen.

Dixie's worsening polyps push her to take matters into her own hands. Don and Blythe's marriage is put to the test, while Ryan and Samantha reconnect.

High above the Giza Plateau stands Egypt's most mysterious ancient site: the Lost Pyramid of Abu Rawash; today, it lies in ruins, but some researchers believe these stone blocks hold profound secrets about an extraterrestrial civilization that existed in ancient Egypt long before our recorded history.

After a messy break-up, The Colonel and Katja find themselves going to war between the town and the base. Captain Maggie tries to de-escalate the tension between the two ex-lovers and negotiate a truce. Meanwhile, Major Shah needs extra cash and finds himself roped into a lobster smuggling scheme with Papadakis.

The Jokers play lawyers trying to convince an unsuspecting focus group to sign off on ridiculous terms and conditions before they go in. Then they put their family businesses to the test by asking strangers if their radio ad is good to stay on the air.

Bex races to catch Zack Lang, a class-obsessed serial killer who bludgeoned wealthy New Yorkers. When Bex notices a sharp contrast between his victims in the past and present, the team has to dig into Zack's unresolved trauma in order to stop him.

Josh Johnson gives a progress report on Trump's first year in office based on his campaign pledges to generate more jobs, make Americans rich, improve healthcare, and protect free speech. Naturally, the only person to benefit from these promises is Trump, who now has everything but a normal-looking hand. Lewis Black takes on Gen Z's nostalgic penchant for the past and the ridiculous "throwback" fads the younger generation is reviving, including cigarette smoking, "dumb phones" to help them think thoughts, tramp stamps, and the mall. Emmy award-winning documentarian Alexandria Stapleton talks to Josh Johnson about producing and directing the Netflix docuseries, "Sean Combs: The Reckoning", including her shared concern with producing partner Curtis "50 Cent" Jackson not to indict the entire Hip-Hop culture along with the music mogul & how the sense of trepidation among the documentary crew & interview participants has shifted since the release of the series and the arrest of Sean Combs.

The age of gods is dying, and the tribes of Britain descend into chaos. One man hears a voice that will change history.

Jimmy welcomes college football player Fernando Mendoza, actor Anthony Anderson, Louis Tomlinson chats & performs, and actress Nell Fisher.

Stephen welcomes an interview with and musical performance by Chance the Rapper, and political scientist Maria Stephan.

Lucretia isn't thrilled when Bennie puts a mechanic with a past on the payroll. Regina struggles to balance her dreams with her day job.

The Team makes sure their opponents never forget who they are.

Having unbound Lachlan, Harper fears she might have damaged his magic forever; fearful of the ramifications, Sarah hands over Starcross to the Moot; when Bea goes missing, the killer's identify is revealed; Sarah and Harper fight to save her life.

After a fatal motorcycle collision, a husband and wife are rushed to the ER. As King and Javadi deal with a bickering family, Santos is forced to check her assumptions about a possible case of child abuse and Robby bonds with a Tree of Life survivor.

In the aftermath of the heist, Zara finds herself under intense pressure as Luke breaks down. DCI Rhys meets unexpected resistance on the investigation.

Manya reunites with an old friend and discovers something shocking; Bea, Twila and Sasha flee the city and learn the secret behind Andrei's rise in the KGB.

While our cadets compete to join an elite team at the Academy, a battle of escalating pranks breaks out between Starfleet Academy and a rival school. Tensions rise fast, threatening their newly-emerging bonds and a blossoming romance.

An epic party at the start of a new season brings new partnerships - and new rivalries - to the Russo Rink. But a moment on the ice changes everything.

A forbidden union gives birth to a prophecy that will outlive the world that made it.

An existential crisis at a celebrity soiree pushes Bert to get more involved in his daughters' lives - with predictably disastrous results.

Father Brown investigates beside the seaside when Sullivan's beloved Aunty Pat is arrested for murder.

Rob Brydon, Lee Mack and David Mitchell are joined by guest panellists Beverley Knight, Alasdair Beckett-King, Josie Gibson and Jo Brand.

Jimmy Carr hosts the chaotic comedy twist on Channel 4's classic brainteaser quiz. In this episode, Joe Wilkinson and Josh Widdicombe take on Rhod Gilbert and Thaniya Moore. Frankie Monroe (Joe Kent-Walters) joins Susie Dent in Dictionary Corner, while maths whizz Rachel Riley looks after the numbers.

As the finalists head to breakfast, the players look back on how they reached this point. The question - Who do you think is a Traitor? - has never been more pressing,

Anthony McPartlin, Declan Donnelly and Claire Foy join Graham on his sofa. With music from singer-rap artist Tinie Tempah.