Silent Witness

The team is called out to Northern Ireland to investigate the bodies of two men killed by paramilitaries twenty years ago. For Sam, it is a case that is soon to turn personal.

The Lyell Center team solve more than just the original case that took them to Northern Ireland. Professor Ryan makes peace with her past and takes control of her future.

Tensions are running high in the 'leaderless' team as Leo and Harry clash over an investigation into an outbreak of breathing difficulties among children on the South Coast.

Leo hunts for the source of the children's symptoms before any more fatalities occur. Meanwhile Harry discovers the truth behind Nick Garner's death.

Harry is called out to a death at a racecourse. A jockey was killed when his horse pulled up and fell, crushing him to death.

Matt Gibb, another member of the syndicate, becomes the prime suspect when police discover he has huge gambling debts.

Leo and his team are approached by a support group to help discover the truth behind a train crash.

Leo, Harry and Nikki step up their efforts to discover the truth behind the train crash but there are still many unanswered questions.