X-Men: The Animated Series 5x12 Descent

Watched X-Men: The Animated Series 5x12 Descent from Trakt

The origin of Mr. Sinister is revealed.

watched X-Men: The Animated Series 5x12 Descent https://trakt.tv/shows/x-men-the-animated-series/seasons/5/episodes/12 https://www.frederickcalica.com/?p=3368973