In Prison Break Season 4 Episode 21, the first half of the series finale, Sucre and C-Note returned and are meeting with a guy who says he can help them out, Self got immunity to allow him to choose whichever side he wants, Mahone went to save Lincoln, and Michael went to save Sarah.
Michael and Sarah are discussing their plans to have a normal life at some point.
Then he receives a call from Mahone, who says that nothing happened because the detonator must have failed. They don’t have 5 minutes to wait for Scofield to arrive, so he will have to trigger it manually. Christina instructs Downey to kill Mahone, but he beats up both of them before giving them the chance. Then he dives out of the room before the explosion goes off.
Sucre makes a call to T-Bag, who’s got a gun at his head because he angered the general.
Sarah and Michael arrive at the location to pick up Lincoln, who doesn’t want to go to the hospital since hospitals mean jail. Mahone says that Christina’s buried. She’s probably still alive, though. Yep, she’s moving.
T-Bag tries to con Sucre, managing to get himself captured in the process.
They’re out of options who to trust, so Michael plans to destroy Scylla. It’s not as if the general’s going to honor his agreement with them anyway. Then Michael gets a call from Paul Kellerman, the guy C-Note’s been talking to. The rumors of his demise were greatly exaggerated. He says Scylla can be used for good if Michael agrees to give it to the United Nations.
Sucre tells T-Bag that, if they take Scylla to the UN, there will be an immunity list. He can be on it if he works with them.
Michael tells Burrows they’re brothers, whether they’re related or not.
Homeland Security is denying Self medical care, which is apparently within their ability to do. He may not be able to talk, but he can write. Not that he’s going to give them any information.
When they break into the hospital, Sarah gets what she needs to help Lincoln, but Mahone gets arrested by the guys from Homeland. As they’re about to drive away, the general’s guy tracks them down from Lincoln’s cell phone.
C-Note and Sucre hang T-Bag upside down to get him to talk.
The general’s got himself a new hostage: Sofia. Yeah, you can trust this guy.
Mahone tells the agents they’re missing what’s right in front of their faces. They don’t care about doing what’s right. They just want Scofield and Burrows.
Sucre and C-Note bust in to kill the general’s thugs and force him to let Sofia walk. Michael and Lincoln would like to kill the general. Sarah wants to let him live. He says they win, and it’s all just a game. Sucre doesn’t want revenge and just wants to clear his name, so he wants to just go and let the general live, as their hostage.
C-Note is not sure they can trust Kellerman, but he is sure that he’s their last option.
During their escape, Sucre blocks the cops, being captured by them in the process.
The others manage to get away, but they’ve been found. The mama’s not dead.
The guys who aren’t getting anywhere with Mahone are now trying to get Sucre to work with them as well. He ain’t budging either. Perhaps if they keep capturing people, they will find someone dumb enough to talk.
Christina grabs Scylla. Michael makes her an offer: drop the gun and put Scylla on the ground, or he’ll kill her. She tells him to go ahead and kill her. His gun doesn’t fire, so now she wants to shoot him. Sarah’s gun works, though. A little too well. She kills Christina, hitting Michael as well, but it appears to be a minor wound.
As Michael’s bringing Scylla to Kellerman, two guys capture him. Good thing they’re working for Kellerman, who agrees that they will all be exonerated. He hands over Scylla, but there’s a piece missing. Michael wants to know exactly who this guy’s contacts are in the US government before making a deal. So does he actually have Scylla, or do they need to hurry up and run for their lives? Tired of running, Michael puts the other piece in place.
The general has managed to escape, but he doesn’t get away before being arrested.
Alex, C-Note, Sucre, Michael, Lincoln, and Sarah are presented with documents that they sign, and then they’re free to go. Pam has been located, and she’s safe, as are Sofia and LJ.
One last bit of business: T-Bag. Do they free him or not? They’re allowed to make the choice. He asks for forgiveness in God’s name. They took a vote, and he’s in luck. He gets a stick of gum on the van ride back to prison.
Now Michael and Sarah can begin to plan their future for real. His bloody noses don’t seem to be a thing of the past, though.
Four years later, Mahone’s dating Agent Lang. Lincoln’s living with Sofia and LJ. Sucre’s with his daughter. Don Self is still a vegetable. C-Note is living out a normal life as a UPS man. Kellerman is a Congressman. The general is getting the electric chair. T-Bag is back in prison, where he’s back to his old ways.
Sarah has a new Michael in her life, her son. They’re going to see the older Michael, who has since died, and they’re all visiting him at the graveyard.
Due to its continuing ratings decline, Prison Break was cancelled, but at least they had a long time to prepare for it and create a proper series finale, although Fox did make sure it was aired to the fewest viewers possible.