Revealing mistake: In the final scene you can see Abruzzi in his cell where they have reused shots from series 1 in Fox River.
Prison Break (2005)
1 revealing mistake in season 5 - chronological order
Starring: Dominic Purcell, Robert Knepper, Wentworth Miller, Amaury Nolasco
Going Under - S4-E15
Continuity mistake: Michael is discussing a bargain with Sara but when he first draws it out it's in squares, then when the clipboard is lying flat on his stomach the letters are circled.
Michael Scofield: This is going wrong in every possible way. (00:05:10)
Trivia: The show was filmed in an actual prison (now unused) in Joliet. The death row cell used for Lincoln Burrows is the actual death row cell that held serial killer John Wayne Gacy.
More questions & answers from Prison Break
Answer: Because of coincidence.