Wash is the 40th Episode of Prison Break and is the 18th episode of its second season. The episode was first broadcast on February 23, 2007, making it the last Episode to be aired during the February sweeps in the United States. It was written by Nick Santora and directed by Bobby Roth. This is one of the few episodes in the second season to feature the entire regular cast. Former series regular Marshall Allman makes a return after a six episode absence and is billed as a special guest star. The episode features the protagonists' attempt to reach a man named Cooper Green, who they hope can be trusted with their audio file that may help exonerate Lincoln Burrows.