Tommy and Diamond are at odds (again) on the next episode of Power Book IV: Force, and BOSSIP's got your exclusive first-look. Source: Power Book IV: Force / Starz As previously reported, the Tommy Egan (Joseph Sikora)-led show debuted its third and final season on Friday, November 7, on STARZ. In its concluding season, viewers will watch Tommy as he battles to balance his personal life with his ruthless pursuit of control over Chicago's criminal empire.