Season 4, Episode 22: Killing Your Number
Michael makes one final attempt to get Scylla and destroy the Company.
Familiar faces return to help Michael
Michael can only save either Sara or Lincoln
Michael has an uneasy reunion with Christina
Michael and Lincoln come to blows over Scylla
Michael and Sara make a dangerous hitchhiking journey to Miami while Lincoln meets with his mother
Linc, Self, Gretchen, and T-Bag go to Florida to retrieve Scylla
Michael enters surgery and suffers from hallucinations
Michael falls into Company hands.
Linc is captured and Don blackmails Gretchen
Scylla is finally retrieved from Company HQ
There's drama tonight as an ailing Michael helps steal Scylla
Michael collapses and has to be taken to the hospital
The Prison Break gang have to make a dangerous passage through a water main
A daring plan is hatched to get the final card from Pad Man
While Linc, Sucre, Sara, and Roland follow a Scylla cardholder to Vegas, the others go after T-Bag; and Don confronts Pad Man.
Mahone is arrested, putting the whole gang at risk and putting Mahone right in Wyatt's sights.
The gang, with Don's help, must break into a safe in the Federal Building to get the next Scylla card.
Michael uncovers unbelievable news in Los Angeles when he seeks revenge against Whistler and Gretchen for Sara's death.
LJ and Whistler are finally exchanged, but more surprises abound; and T-Bag's scheming finally pays off.
Michael, Whistler, and McGrady escape from Sona; but not everything goes according to plan, and the exchange is compromised.
As Michael finalises plans for the tunnel escape, his fellow plotters begin to turn on him.
Lechero's demotion devastates Michael's breakout plan as Sammy takes over the reigns at Sona.
The Panamanian Army arranges for Michael to get a taste of solitary confinement.