In the third episode of Peaky Blinders season four, titled "Blackbird," the Shelby family fights back against the Italian Mafia while dealing with internal tensions, featuring Arthur's narrow escape from a factory attack and Polly’s assertive return to the business. The episode also showcases Tommy engaging with union leader Jessie and Arthur's shift towards using hired muscle, like Aberama Gold, under Linda's influence. For a detailed summary of these events, you can visit the Peaky Blinders Wiki or the Reddit episode discussion . Blackbird | Peaky Blinders Wiki | Fandom