Five brilliant medical students experiment with death in a reckless quest for knowledge and fame, led by the manipulative Nelson. But when their past sins come back to haunt them they discover the terrifying consequences of meddling with the unknown. Breathtakingly tense and totally gripping. find out more...

Four key episodes from the fourth, fifth and sixth seasons specially selected and introduced by creator Chris Carter and executive producer Frank Spotnitz. find out more...