All five two-part episodes from the 19th 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 the suicide of a DJ, the murder of an ex-convict and the shooting of a Polish teenager by armed police. The episodes are: 'After the Fall: Part 1', 'After the Fall: Part 2', 'Flight: Part 1', 'Flight: Part 2', 'Life Licence: Part 1', 'Life Licence: Part 2', 'In Plain Sight: Part 1', 'In Plain Sight: Part 2', 'River's Edge: Part 1' and 'River's Edge: Part 2'.