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.

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.