Set on a sleeper train traveling from Glasgow to London, a government agency desperately tries to intervene in the rapidly-escalating events onboard. Can two people who've never met, one on the train and one not, work together to save the lives of its disparate group of passengers as the Heart of Britain service hurtles towards what might quite literally be its final destination?
Alexandra Roach
Joe Cole
Alex Ferns
Sharon Small
James Cosmo
David Threlfall
Daniel Cahill
Lois Chimimba
Sharon Rooney
Ruth Madeley
Katie Leung
Leah MacRae
Gabriel Howell
Scott Reid
Pamela Nomvete
Parth Thakerar
Adam Mitchell
Remy Beasley
Jonjo O'Neill