Obsessed with their virtual reality quest, Jin and Jack race to solve a complex riddle - but advancing to the next level brings harrowing consequences.

In a universe where Sierra is the undisputed ruler, Davey and Jonesie join the Resistance.

Reunited with his long lost father, Andy finally confronts Hugo about the missing money, only for them to wind up lost in the bush, while Cassie witnesses the shocking discovery of Gareth's body.

Helena makes allies in a treetop village, and travels to a Pteranodon den.

When Ian Andrews is on the local bus, everything is as usual. But when the bus rolls into Bath station, Ian is dead. It will be a matter for Commissioner Lauren McDonald and Detective Sergeant Dodds. To solve the mystery of Ian's fate, the troubled couple must delve into the history of blues music and the shady world of art auctions.

A missing woman, a dead stag - DI Riya Ajunwa knows something is not right in Chadder Vale. There must be a connection between the two, but what is it?

It's the team's most confounding puzzle yet when a passenger disappears from a flight to Dominica, only to be found back in Saint Marie - murdered.