During the Blitz of World War II, a female screenwriter works on a film celebrating England's resilience as a way to buoy a weary populace's spirits. Her efforts to dramatise the true story of two sisters who undertook their own maritime mission to rescue wounded soldiers are met with mixed feelings by a dismissive all-male staff.
Gemma Arterton
as Catrin Cole
Sam Claflin
as Tom Buckley
Bill Nighy
as Ambrose Hilliard / Uncle Frank
Jack Huston
as Ellis Cole
Helen McCrory
as Sophie Smith
Eddie Marsan
as Sammy Smith
Jake Lacy
as Carl Lundbeck / Brannigan
Rachael Stirling
as Phyl Moore
Henry Goodman
as Gabriel Baker
Paul Ritter
as Raymond Parfitt
Richard E. Grant
as Roger Swain
Nicholas Murchie
as Bus Conductor
