The award-winning BBC crime drama returns with five thrilling two-part stories, starring Emilia Fox in the lead role alongside David Caves, Richard Lintern and Liz Carr. This series also features a diverse supporting cast including Art Malik, Samantha Bond, Dervla Kirwan and Amanda Root.

In Season 22, pathologist Dr Nikki Alexander and her dedicated team help the police solve a slew of mystifying murders. Storylines range from street drugs and knife crime to issues facing the LGBT community.

Forensic experts Dr Nikki Alexander, Jack Hodgson and Leo's replacement Dr Thomas Chamberlain investigate various cases including a triple murder after Nikki's friend, and fellow pathologist, Sally disappears.

The episodes are: 'Moment of Surrender', 'Duty of Candour', 'A Special Relationship', 'One Day' and 'Family'.

The award-winning crime drama returns for a landmark 20th season, starring Emilia Fox. Each story follows the dedicated team of forensic pathologists who try to work out how and why the victim died, often risking their own lives in the process.

In this season: an apparent suicide that starts to look a lot more like murder, a young woman is dragged from a river in the same spot where her best friend mysteriously disappeared three years before and, in the final explosive story set in Mexico, Nikki finds herself in danger when she searches for the truth about the death of a former colleague.

All five two-part episodes from the 18th series of the BBC crime thriller. Forensic experts Dr Nikki Alexander (Emilia Fox), Jack Hodgson (David Caves) and Leo's replacement Dr Thomas Chamberlain (Richard Lintern) investigate various cases including a murderous sniper picking people off at random, the death of a man who's pushed in front of a train and the assassination attempt of a wealthy Russian businessman. The episodes are: 'Sniper's Nest', 'Falling Angels', 'Protection', 'Squaring the Circle' and 'One of Our Own'.

All five two-part episodes from series 17 of the BBC crime thriller. Forensic experts Dr Nikki Alexander (Emilia Fox), Jack Hodgson (David Caves) and Leo's replacement Dr Thomas Chamberlain (Richard Lintern) investigate various cases including the gruesome murder of a lap dancer found in a remote Scottish forest and a serial killer kidnapping children. The episodes are: 'Commodity', 'Coup de Grace', 'In a Lonely Place', 'Undertone' and 'Fraternity'.

Dr Nikki Alexander and the team at the Lyell Centre must solve five more thrilling mysteries in this award-winning crime drama.

A body in the concrete pillar of a car park. A downed plane. Scientific research gone wrong. The cases that end up at the Lyell Centre are rarely straightforward.

Initial suspicions are challenged as the evidence mounts, and Nikki and the team must work harder than ever to find the truth.