It's been seven years since Michael was presumed dead, but when clues suggest that he might still be alive, Lincoln reunites with Sara to help track down the truth.

As Lincoln and C-Note search for the "Sheik of Light," Michael and his cellmate, Whip, attempt an escape from Ogygia. Meanwhile, Sara's investigation into Michael's reappearance leads her to the state department and an uneasy reunion with Paul Kellerman.

When T-Bag ambushes Sara, he warns her that two of Poseidon's henchmen, Van Gogh and A&W, may be following her. Meanwhile, Lincoln attempts to retrieve his confiscated passport to escape Yemen, and Michael plans his next move.

Lincoln becomes frustrated as he tries to understand what really happened to Michael. C-Note has a new escape plan, but fears it will not be executed quickly enough, as Cyclops is trailing closely behind. Meanwhile, Sara struggles with the idea that Michael may be alive.

As Michael, Lincoln and the remaining Ogygia gang try to escape Yemen, they find themselves racing though the desert from a vengeful Cyclops. Meanwhile, A&W and Van Gogh question their roles as their pursuit of the escapees leads them to...Graceland.

Sara becomes fearful of her family's safety when she discovers the real reason that Michael faked his own death. In the meantime, Michael and Lincoln continue to try find a way home with the help of Sucre, and the real identity of Poseidon is revealed.

When Sara and her son's safety is threatened, Michael and Lincoln recruit the help of Sheba and C-Note to try and catch Poseidon. Meanwhile, Whip goes on a separate mission and T-Bag reveals a secret.

Dangerous threats keep Michael and Lincoln fighting to protect Sara and Mike. Meanwhile, Poseidon continues to try and outsmart Michael and the rest of the gang, which leads them to the ultimate showdown, and not everyone makes it out alive.