Under & Out - S3-E11
Plot hole: Gretchen, Lincoln, and Sophia were able to visit Scofield and Whistler in Sona without Gretchen being recognized. She was taken in for questioning in episode 9, but she managed to escape and kill General Zavala and one other guard. The other guards knew that she was the one who killed Zavala but she was still able to sign in for visitation.
Answer: Roughly as follows. Linc "kills" Steadman in 2001. Michael robs the bank on March 9th 2005 and is sent to Fox River on April 11th. The breakout from Fox River takes place on or around May 25-31. Michael arrives in Sona on June 17th 2005. More details are here: https://prisonbreak.fandom.com/wiki/Prison_Break_timeline.
Ssiscool ★
That wouldn't make sense because the original grave stone in series 4 has Michael's death date as 2005, which is supposed to be at least 3 years after Fox River.