The Heir's Doomsday Revenge

Morgan, young master, killed by family and adopted son Cole Morgan during doomsday. Reborn before apocalypse, cuts ties with Morgan family, rents Bunker, awakens watch with storage, hoards supplies. After Doomsday, Morgan family and villains try to seize Bunker. Morgan uses memories and Bunker defense to resolve crises, saving doctor Luna Jennings and sister Melody. Exposes Cole Morgan as illegitimate, shutting family out of Bunker. Protects sanctuary in frozen world.