"Nightsleeper" is a six-part British miniseries created and co-written by Nick Leather. The show is a real-time thriller set on a train from Glasgow to London, and it follows two strangers who work together to save passengers as the train hurtles towards disaster. The cast includes Joe Cole, Alexandra Roach, Lois Chimimba, Scott Reid, Katie Leung, Sharon Rooney and Alex Ferns. It premiered originally in the UK on BBC One on September 15, 2025 and in the US on BritBox on December 26, 2026.
Find out more about the series after the jump.