Michael looks up Mahone's ex-wife and discovers something telling about his pursuer. And Sara figures out what the numbers on the origami birds mean, learning where to meet Michael in the process. Trouble is, so do Kellerman and Mahone. Linc and LJ head for the rendezvous point, too. Meanwhile, C-Note returns to Chicago for a rendezvous with Kacee and Dede, but Lang gets to them first; and T-Bag seeks out Ms. Hollander, but stops first to buy some flowers.
Due to a political conspiracy, an innocent man is sent to death row and his only hope is his brother, who makes it his mission to deliberately get himself sent to the same prison in order to break the both of them out, from the inside.