Gemma reacts angrily to Bridget's revelation, and threatens to expose Bridget unless she exposes Henry's infidelity. Things get worse from there. Bridget goes to an Narcotics Anonymous meeting and does not give her name. "Siobhan" apologizes to Juliet for "stealing" her dad from her mom, and they begin to reconcile.
Hanssen tries to stop his Holby empire from crumbling, and Michael fights to save his job.
The team are called in to investigate the death of prominent human rights lawyer Richard Warner. He died in a fire at his home but it is not clear if the fire was set deliberately, so the team analyse the severely burned body without knowing the cause of the fire. Warner had recently been visited by one of his old clients - Joseph Marial, an asylum seeker from Sudan, who had been deported a year earlier after he was found guilty of assault. Warner defended him, but was unable to get him acquitted. Warner's son, Nick, is convinced that Joseph must be responsible, but there appears to be no proof. In a race against time, Oggy, Mike and the team reconstruct the fire in their lab to try and establish more information about the fire that killed Warner. Their findings bring fresh evidence to light.
Contestants from past seasons return to inspire the current players; after a challenge where the teams battle the elements, the winners receive a special bonus prize; contestants face elimination.
The Duggars are in Atlanta for a little work and a lot of play. After attending a speaking engagement, it's time for some fun in the water, jet skiing, tubing and wake boarding. But happiness turns to worry when one Duggar has a terrifying accident.
The Duggars are under water - in an aquarium that is! The Duggars continue their visit in Atlanta, Georgia with their first ever trip to an aquarium. Later, the family meets professional surfer and shark attack survivor Bethany Hamilton.
An unusual looking 1947 Harley-Davidson Servi-Car (a three-wheeled motorcycle) rolls up, and Paul jumps at the chance to tool around on it. Jon brings back a rare, vintage British rocking horse from a pick, but Paul's sister Susan worries that it might not rock buyers. Finally the Gallery 63 crew can't resist a friendly wager on a vintage Italian multi-game table.
Silver is asked to make campaign videos for political candidate Marissa Harris-Young who is running against Teddy’s Uncle Charles for public office. Teddy runs into an old flame and Annie gets stuck with Leila during an important date. A surprise visitor threatens to tear Liam and Jane apart, while Naomi can't shake her growing feelings for Austin during a party to encourage students to vote.
While investigating the mysterious shooting death of a young woman, Castle and Beckett face a cop's worst nightmare when they discover that the gun used in the killing is Det. Ryan's old service weapon - the one that was stolen by the serial killer, 3XK. Now with the clock ticking, the team must work to solve the murder, track down 3XK and retrieve Ryan's gun before the killer strikes again.
PC Penhale is shocked by the unexpected arrival of his ex-wife Maggie, who appears to have forgotten that they separated years ago and wants to know why he left her. Eleanor goes on a date with local fisherman Paul Hale, an old friend she has not seen since school, while Martin and Louisa finally agree on a name for their baby
Special Agent Rockgut contacts the penguins with a warning that Red Squirrel has brainwashed one of them.
The animals think Julien caused old lady Gladys to slip and hurt herself.
Kowalski is laid up in the hospital, so he can't attend the invention expo, and it's driving him crazy.
Taylor's friend Dana hosts a game night but the attempt at light-hearted fun spirals seriously out of control when Kim suspiciously spends most of the night in the bathroom and Brandi makes some outrageous accusations as to why.
After celebrating the release of his new book, Jonathan learns some distressing familial news. George reunites with his daughter Emily and Ray spends time with his biological son Spencer. Meanwhile, Jonathan's latest case leaves him in a precarious position.
After some very unusual weather hits Bannerman Road, Sarah Jane investigates why. Fish are falling from the skies, and Sarah Jane's investigation ends up leading the team to the Museum of Culture. After Clyde acts the fool a little to much, his friends end up turning against him, and he is banished from their lives.
Secrets abound in the Mercer household and Emma has had about enough of it. When she overhears an argument between Ted and Kristen, Emma thinks she finally can put a stop to all of the lies and get some real answers out of Sutton's mom. But does Emma really think that she could pry the truth out of a secret that has been hidden for almost seventeen years? Or will the secret Kristen has been hiding turn out to be not the biggest secret lurking around the Mercer house? Meanwhile, Sutton gets a glimpse into what Emma's life has been like when she is forced to pretend to be her sister while in Las Vegas.
Winter arrives on Jinsy and Maven is forced to embark on an important journey with one of his former teachers, who takes great pleasure in tormenting him. However, as conditions get more treacherous, the travellers take refuge in a miniature chalet - and a chance meeting leads to a sudden change of plans. Guest starring Simon Callow and Nigel Planer.