A young girl, passionate about fashion design, is mysteriously able to enter the 1960s where she encounters her idol, a dazzling wannabe singer. But 1960s London is not what it seems, and time seems to be falling apart with shady consequences.
During the Blitz of World War II, a female screenwriter (Gemma Arterton) 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 (Lily Knight and Francesca Knight) who undertook their own maritime mission to rescue wounded soldiers are met with mixed feelings by a dismissive all-male staff.