Complex sentence: In "The Forest", the player must survive on a forested island after mutants are seen taking his son away making him the the lone survivor of a plane crash by creating shelter, weapons, and other survival tools.
Split into simpler sentences: In "The Forest", the player must survive on a forested island after a plane crash during which mutants are seen taking the player's son away. The player survives by creating shelter, weapons, and other survival tools.