With Power Book IV: Force pulling the trigger on its ending after three explosive seasons, Joseph Sikora and Isaac Keys are reflecting on what it means for Tommy and Diamond to "land the plane" in the crime series centered around loyalty, love, and lethal ambition. Source: Power Book IV: Force / Starz As previously reported as Power Book IV: Force barrels toward its series finale, kicking off Friday, November 7 on STARZ, the high-octane crime saga raises the stakes for its Chi-Town crew.