After being stripped of his memory following a secret mission to rescue a geneticist creating mutant super soldiers, super assassin Alex Johnson finds himself a janitor at a top secret Alaskan military base. There, he's constantly bullied by base soldiers, including his ex-girlfriend and her new boyfriend, the base sergeant. The only person who is kind to him is a research scientist, Felina Caruso. When the base comes under attack from an unstoppable super killer that spreads a zombie contagion, the President of the United States uses a device to return Alex's memory so that he can stop the assault, protect the secrets hidden in the base and prevent the zombie contagion from spreading.