Voir Marvel Comics X-Men (1992) Seasons 1 – 5 - Episode 74

In London, England's Victorian era, two scientists, Dr. James Xavier and Dr. Nathaniel Essex, hotly debate Charles Darwin's theory of natural selection. Essex believes mutants are the next genetic step forward and begins a bizarre experiment involving mutant evolution. The origin of Mr. Sinister is revealed, as Dr. Xavier attempts to stop Essex before he goes too far.