The death of a professional tennis player leads the task force to a doctor who may be fixing the odds for a major sports betting syndicate. Red digs deeper into Dembe's betrayal. Ressler struggles with sobriety.

The season heats up as Kraken, Yeti and deadly Rotator enter the Box for the 1st time. More carnage in Sin City as 14 killer bots enter the arena. Legendary drum-spinner Yeti returns to the fray after a year's absence. Rusty is back too - but will his Mum's popcorn bowl be enough protection against the deadly weapon of his first opponent?

Sheldon acts as Mary's spy during a youth lock-in at church. Also, Georgie is attracted to an older woman, Mandy.

After a raw diamond is found at the crime scene of a murder, Major Crimes sets up a stakeout to take down the suspected gem smugglers. An undisclosed team connection threatens to derail the investigation.

Things are still tense between Walker and Liam after Liam called in a false warrant on Dan Miller. However, things take a turn for the worse when Captain James informs the brothers that Serano's lawyers are using Liam's mistake as a way to set the criminal free, putting the entire Walker family in danger.

After her son's body is recovered in Mississippi, Mamie insists on having a public wake with an open casket to ensure that he did not die in vain. The case becomes national news, which puts pressure on Mississippi officials to do the unthinkable-go to trial.

Survivor's guilt causes Amy to spin out, thinking that death is around every corner. Jodie's relationship with her trainer seems to take on a new light after she has a heroic moment, and Sarah gets bullied for not slacking enough at her new "relaxing" job.

It's time for a twist... a hair twist, that is! In this one day challenge, the designers are each teamed with an up-and-coming hairstylist for a head-to-toe fashion collaboration. The pairs will work together to create an innovative design and hair look that compliment each other that showcases their creativity to the judges and guest judge, model Precious Lee.

A boy disappears after meeting up with an online gamer; Benson suspects her son is being bullied.

Jenny clashes with her replacement coroner as they navigate the decedents of a fatal car crash.

Kat struggles to find the perfect way to celebrate her anniversary. Meanwhile, Randi and Carter continue to navigate their new relationship.

When Jay's sister, Bela, comes to visit Sam and Jay after being dumped by her boyfriend, they're shocked to discover that she's communicating with someone they know on a dating app.

A historic trial begins, and on the eve of her testimony, Mamie must face the three people responsible for her son's murder, while also facing some ugly truths in the Jim Crow South.

Gina gets a surprise visit from her sister, Natalie. Also, Drew and Harry start a road trip together, but have different destinations in mind.

When Hazel gets in trouble at school, Riley and Vanessa disagree on how to handle the issue.

Bull and Chunk aim to prove that their client, a woman on trial for murder, committed the crime due to a lack of behavioral control caused by a brain tumor; Taylor is suspected by the FBI of committing cybercrimes

Dory and her disciples orchestrate a hostage situation as they rush to finish the Lyte pill's formula.

When a barrage of cyberattacks cripples the city, Stabler is convinced Wheatley is involved; Bernadette receives an unwelcome visitor.

After making a miraculous recovery, Peacemaker returns home-only to discover that his freedom comes at a price.

After Peacemaker's hazardous escape, tension and mistrust build within the team. Later, as Peacemaker grapples with his new assignment, he receives a surprise visitor.

Jimmy welcomes actor Willem Dafoe, actress Ariana DeBose, and a musical performance by The Lumineers.

Stephen welcomes actor Liev Schreiber and a musical performance by Allison Russell.

Clark attempts to help The Highest when a struggle ensues. The Highest chastises Dikahn and expresses his disappointment in letting everything happen as it has.

When a mentor from Dal's past persuades him to use their Federation cover for personal gain, they quickly discover Starfleet has protocols for a reason.

Having survived the fight of their lives against the King, Shanika and Tyson's lives are torn apart when child services arrive. Tyson's attempts to win Shanika back are sidelined when Eleona the barmaid reveals herself as a vampire.

Kirsten sets in motion her plan to free the Traveling Symphony, while Miranda tries to live the right life.

Carrie's publisher tasks her with injecting some hope into her new book, Miranda attempts to rekindle a spark with Steve, and Charlotte bristles when Harry imposes on her sacred space... tennis.

On their first official mission to assassinate suspected "butterflies", Economos and Murn bond, and Peacemaker and
Harcourt reach an understanding. But the whole job goes sideways with the arrival of Judomaster.

As a widower, Gary struggles to connect with his 11-year-old daughter Emma. When he meets the mysterious Mary, it might be a sign that their universe is about to change, if Mary's dark secret doesn't tear them apart first.

Lady Felicia and her husband Monty host a lavish masked ball counting down to 1954. However, their plans are ruined when the Minster of Defence, Sir Charles Hakeworth is murdered by a masked figure. With the estate locked down and a killer in the midst Father Brown and the gang must find the real perpetrator.

Sorting the fact from the fiction this week are guests Angellica Bell, Bob Mortimer, Suggs and Holly Willoughby.

Jimmy Carr hosts the game show mash-up, with Countdown regulars Rachel Riley and Susie Dent. Jack Dee and Tom Allen take on Jon Richardson and Judi Love. Dr. John Cooper Clarke is in Dictionary Corner.

Diana is forced to make a confession after being shocked by the appearance of a familiar face - Jack Blackfriars.

Sandi Toksvig invites you to enjoy a QI smörgåsbord with Jen Brister, Jimmy Carr, Chris McCausland and Alan Davies.

The arrival of a long-lost brother to a family-run golf club culminates in a body on the course. But a prime suspect with an alibi leaves the team with an impenetrable conundrum.

Graham is joined by Ricky Gervais, Ant and Dec, Cate Blanchett and Elvis Costello.