Bad boy Callum (Sean Doyle) will resort to violence in Fair City on RTÉ One on Thursday night, July 24, at 8:00pm.
Warning: spoiler alert!
Callum is shocked when O'Rourke, one of the men who beat him up, returns to Carrigstown.
Terror turns to anger when O'Rourke starts to taunt Callum and he lashes out, hitting O'Rourke over the head with a wrench and knocking him unconscious.
Callum calls an ambulance and flees the scene - but is help too late for O'Rourke?