Cruise singer Jack and First Officer Kate team up to solve a murder in La Rochelle.

When the husband of the world's number one crime writer dies in circumstances eerily similar to events in her own book, Jack and Kate must unravel the murderer's identity.

In Casablanca, the sun-drenched alleys and markets hide sinister secrets, and soon a charity helping street kids is mired in scandal and a murder has been committed.

In Palma, a dramatic kidnap and ransom demand shatter the party mood ahead of a lavish wedding. Can Jack and Kate unravel the mystery before it takes a tragic turn?

Murder is on the cards as the luxury ship hosts a high stakes poker tournament. When a top player is dealt a deadly hand, Jack and Kate have no shortage of suspects.

A deadly family saga unfolds as the ship arrives in Sicily with a successful businessman, his children and his new wife. When death strikes, is it a Mafia hit, or a killer closer to home?

A murderer strikes in the shadow of Barcelona's majestic Sagrada Familia, but who has the skills to kill in this very particular way? Jack and Kate investigate a crime that feels personal.

As the ship stops one last time, a famous singer causes a stir. It's not long before there's murder in Malta. But will the drama in Valetta make this Jack and Kate's final destination?

The holiday season is off to a rocky start when the luxury ship's resident Santa falls ill, threatening to disappoint the passengers. Bev puts Jack in charge of finding a replacement Santa and his search leads him to Buddy, a veteran comedian in Dubrovnik, who seems like the perfect fit. However, unexpected events complicate Jack's plan, leaving everyone scrambling to save Christmas on board.

Jack invites Kate for a romantic evening at the opera during their stop in Rome. However, the arrival of his estranged 18-year-old daughter, Mia, throws his plans into chaos. As Jack investigates the murder of an opera troupe member, the situation spirals out of control when Mia runs away with a suspect from the investigation.

Jack and Kate are still reeling from their fallout in Rome, each trying to suppress their growing feelings. Adding fuel to the fire, Piers steps into his new role as Staff Captain with calculated charm, hoping to rekindle his relationship with Kate.

Jack and Kate are drawn into the murder of a charismatic but ruthless vineyard owner and a tangled web of suspects, including his ex-wife, son, and new partner.

A lavish influencer party on a sun-soaked Gozo beach turns deadly when its host, Tony Tong, is found murdered. Amid the chaos, Jamil is discovered passed out near the scene, making him the prime suspect.

A pickpocketing ring aboard the ship spirals into murder when one of the culprits is killed. And Jack's recklessness prompts Piers to seize the opportunity to accuse Jack of misconduct.

When a rock band reunion ends in murder, Jack and Kate are thrust into a case riddled with secrets and a meticulously-planned alibi, before unveiling a killer hiding in plain sight.

A stolen artefact becomes the centrepiece of a heist that leaves a security guard dead. And with Jack's future on the line, Kate must decide whether to fight for the man she loves.