Oscar-winning star William Hurt heads a stellar cast in this gripping drama about the brilliant and charismatic US physicist Richard Feynman, who helped uncover the secrets behind the Challenger disaster of 1986. Witnessed by millions of television viewers around the world, the space shuttle exploded just 73 seconds into its flight, killing all seven astronauts on board, including teacher Christa McAuliffe. Battling politics, egos, NASA secrecy and his own quiet fight with cancer, Feynman worked tirelessly to uncover the causes of the tragic event, determined that such failures should never be repeated.

Twenty five years after the death of the brilliant and charismatic Richard Feynman, this film explores the remarkable life of the Nobel Prize winner who was one of the greatest scientists of the 20th Century. Drawing on the BBC's earlier iconic films about Feynman and new interviews with those who lived and worked alongside him, we discover what made this extraordinary man such a genius.