In Budapest, Jack and Mike plan a sting on a slippery arms dealer to ascertain the whereabouts of the Sokol nuclear device, as Greer discovers some intriguing and potentially incriminating information on Petr Kovac.

Determined to change his life, Kevin journeys back in time to undo a childhood mistake - but meddling with the past doesn't solve his problems.

An unemployed Emily plays tourist and nabs a waitressing gig; Sylvie's hard veneer starts to crack at Camille's gallery launch. 

Wanting a better way to drink water, the Mighty Ones go on a quest for a cup

Aguni has one thing on his mind; to find and kill the King of Spades. He's joined by Arisu and a determined high schooler named Akane Heiya.

The Turners support a family still suffering the devastating effects of thalidomide, Miss Higgins is involved in an unexpected delivery, and the community stages a talent show.

Portwenn's grumpy GP seems determined to cast himself as the Grinch, his first move here being to disappoint the kids by snatching Santa from his grotto because he suspects him of having a contagious skin condition. And don't get the Doc started on the dangers of displaying trees indoors. They're a fire hazard, apparently. With all this in mind, you'd think he’d be immune to the magic of Christmas, but this series finale tries to get Martin to see the error of his ways. Rather touchingly, it must be said. And, what's more, there's not a National Elf Service joke in sight.

Andre finds an investor for Claudia. Meanwhile, Nina and Claudia vie for shareholders' votes. A damning article leaves Nina exposed. An uncomfortable truth surfaces for Wanda, while Nina continues her search for the missing money.