A prequel set in an abandoned sanatorium during a blizzard. It shows the childhood of the mutants. The Hindi Dubbed Experience: The setting changes from lush forests to a snowy sanatorium. The Hindi audio track emphasizes the echo and emptiness of the building.

This entry leans heavily into the "trap" subgenre, featuring elaborate, medieval-style traps laid out across the woods. It also marks the franchise's transition into CGI-heavy gore elements.