Quick Answer: 24 Episodes (Plus 2 Specials) Season 4 of Prison Break consists of 24 regular episodes , making it the longest season of the series. However, the narrative continues directly into two standalone TV movie/special episodes (often labeled Episodes 23 & 24 or as The Final Break ), bringing the total complete storyline runtime to 26 episodes . The Two-Part Structure of Season 4 Unlike previous seasons (Season 1: 22 eps, Season 2: 22 eps, Season 3: 13 eps), Season 4 was split into two distinct blocks by the network (Fox) due to the 2007–2008 Writers' Strike.