Natasha Romanoff, also known as Black Widow, confronts the darker parts of her ledger when a dangerous conspiracy with ties to her past arises. Pursued by a force that will stop at nothing to bring her down, Natasha must deal with her history as a spy and the broken relationships left in her wake long before she became an Avenger.

Joe is left home alone by his mum. Fending for himself, he must deal with new friends, threatening foes, and the dodgy parcel of money he's found hidden in his bathroom.

Two detectives with opposing viewpoints are partnered together five years before the Apocalypse.