How many more prison break episodes are there?

Today is April 2, 2009. There are 6 remaining Prison Break episodes in Prison Break's 4th season. Fox announced the Prison Break series will end with the completion of season 4 which will have its usual 22 episodes. Prison Break returns from hiatus on Friday, April 17, 2009 to air its final 6 episodes ending with a double episode series & season finale on May 15th. Seasons 1, 2, & 4 will have a full 22 episodes. Season 3: only 13 episodes as it was affected by the Screenwriter's strike.