| Event | Date | | :--- | :--- | | Season 4 Premiere (US) | September 1, 2008 | | Mid-Season Finale | December 22, 2008 | | Spring Premiere | April 17, 2009 | | Season/series Finale (Ep 22) | May 15, 2009 | | "The Final Break" DVD Release | July 21, 2009 |
Season 4 consists of in total, though distribution platforms often count them differently: prison break season 4 release date
A standalone television movie, which serves as the chronological conclusion to the fourth season, was released on May 24, 2009 (international) and July 21, 2009 (DVD/Blu-ray in the US). Season Structure and Episode Count | Event | Date | | :--- |
The September 1, 2008 premiere was unusual for two reasons: was released on May 24