20-Squad faces down a prison hostage situation, only to be thrown into deeper danger when a bomb explodes, freeing maximum-security prisoners from their cells, including someone with a personal grudge against Hondo.

When Quinten's parents Sam and Ruthie visit, George and Rosie are suspicious of their Midwestern manners.

Bobbie asks Isabella to move in with her, but when Isabella sees that Bobbie likes to address conflict head on, Isabella decides it might not be the best idea.

Customizable ski poles, all-natural lip balms, at-home sugaring hair removal kits and a line of oat-based donuts. Kendra Scott returns as a Guest Shark.

Guest: Grace Byers.

Bode and Gabriela consider confessing a huge secret they have been hiding.

Guest: Greg Proops.

Guests: An interview with Rep. Jamie Raskin, Democratic congressman representing Maryland's 8th district. This week's panel discussion includes Michael Moynihan, co-host of the weekly podcast "The Fifth Column" with Kmele Foster and Matt Welch; and Tim Miller, GOP communications director, MSNBC political analyst, and host of the podcast "The Bulwark".

Frank intervenes when tensions rise between Mayor Chase (Dylan Walsh) and the fire commissioner of New York City (Mira Sorvino). Also, Erin is blindsided when Henry agrees to testify for the defense in a case she is prosecuting; Danny and Baez investigate when human remains are discovered in a storage unit; and Eddie and her partner Badillo navigate a complicated arrest when their criminal offender is scheduled to donate his kidney.

Enrico remains doubtful about running for Parliament while Prosecutor Fourneau and Lidia struggle to connect the victims of a series of brutal murders.

Eidra helps sneak an unannounced guest into Grove's funeral, Kate realizes she might have made a bad call before the bombing, and Stuart speaks his mind.

A few days before the show, Paloma is still without a creative plan. Caroline is ready to make her move.

Only death is irrevocable.

Popcorn sees a high-profile wedding as an opportunity to find her mother. Meanwhile, tensions rise as the police surround the church.

Björn figures out how to mindfully dispose of a body while navigating the suspicions of his family, the police and Dragan's underlings.

Capt. Fah investigates Min's sudden disappearance and uncovers strange details as she scours the town for clues.

When a former coworker - and practicing witch - moves in next door, an aquatic performer finds herself pitted against dark forces while dealing with an increasingly disturbing pattern of behavior that began when they worked together as mermaids at a Fort Lauderdale bar.

Battling his demons and unresolved grief over Lynn's death, Eli grapples with his connection to Noah but reaches a breakthrough.

Uncle Michele claims to be guilty, but the investigation goes on.

Past and present collide as Álex confronts the nightmare he's been running from, and nothing is as it seems. Is there time to build a brighter future?

Sylwek hesitantly helps Oskar pick up a few covert supplies for his next operation, while struggling to conceal the truth from his wife.

When it's revealed that Nemo is playing with the lives of the crew, he is confined to his cabin and Boniface turns the Nautilus around. When they hit magnetic north and lose any sense of direction, then are attacked by metal-eating bugs, Nemo must show that he knows who his crew are, and must reveal himself to them, if any of them are to survive.

For the first time in Strictly history, it's Icons Week in the ballroom, with the couples performing routines that honour some of the most influential music artists of all time.