The film, One Life, tells the relatively unknown, but powerful story of Nicholas Winton. Nicky is played by the brilliant Academy Award-winning Anthony Hopkins as the older retired Winton, and the wartime younger Nicky is played by the talented John Fynn.

The story centres on Winton, a former London stockbroker in comfortable retirement in the 1980s who, after encouragement from his wife Grete (played by Lena Olin), clears out his study after many years of accumulated clutter.