Tommy gets involved in a power game with fascists, freedom fighters and Boston gangsters. As the players plan to double cross him, Tommy visits an old ally in Camden.

Faced with devastating news, Tommy goes on a quest to discover who it was that placed a curse on his family. In Birmingham, Ada takes charge, and Arthur takes on some new recruits.

In the light of extraordinary personal revelations, Tommy takes a course of action that will change everything. Meanwhile, his enemies’ plans start to fall into place.

As the clouds of the coming storm gather, Tommy Shelby faces the consequences of his experiences and his actions.