The youngest Shelby, Finn , is banished from the family for his disloyalty and the betrayal of informant Billy Grade, who is killed by Tommy’s illegitimate son, Duke . Meanwhile, Lizzie finally leaves Tommy after discovering his affair with Diana Mitford.
The series finale of Peaky Blinders , titled is an 81-minute epic that brings Thomas Shelby’s long-running TV saga to a dramatic conclusion. Released in April 2022, the episode serves as a bridge between the television series and the continuation of the story in the feature-length film, Peaky Blinders: The Immortal Man . Plot Summary: A Final Reckoning
Tommy travels to Canada for an opium deal with Michael Gray . Michael attempts to assassinate Tommy with a car bomb, but Johnny Dogs switches the device. Tommy ultimately shoots Michael in the eye, fulfilling Aunt Polly’s prophecy that "one of you will die".
Back in Birmingham, Arthur Shelby traps and kills Captain Swing (Laura McKee) and her IRA associates using mustard gas, finally avenging Aunt Polly’s death.
The episode ends with Tommy confronting the doctor who lied to him but choosing to spare his life. He watches his wagon and remaining possessions burn, symbolizing a clean break from his past.