Torna il 17 Settembre

At Sona, Michael meets with McGrady to get info on the whereabouts of a man named James Whistler. The man was arrested for having killed the Mayor's son during a bar fight. While Michael learns that everyone is looking for him and that the man may even have escaped, Mahone hides and watches. Later, Mahone learns from McGrady that whoever finds Whistler and kills him is as good as a free man. Bellick is still behind bars.

Bellick is now a Sona inmate. He is having a hard time with some other inmates who make him drink in a puddle when he says he is thirsty. He befriends Sapo, a small Costa Rican man who suffers from the same bad treatment Bellick has been. The bad guys keep "torturing" Sapo and Bellick. When they go to the mess, they are told they cannot eat. So where will they ever find food?

One of the new characters is Lechero, an inmate who rules over Sona. After riots the previous year, Sona was left without guards. Lechero rose over the others and has better living conditions than the other inmates. Mahone, Michael, and another newbie, get to know Lechero and Sona when he explains how things work in the prison.

The episode introduces 40-year-old Colonel Escamilla, the man in charge of running Sona.Lechero warns him that the prison ran out of water. Escamilla doesn't seem to see the urgency of the situation and says he'll get a water truck the day after tomorrow. But Lechero knows what a prison, especially Sona, without water can be like and tells him he needs it now. But Lechero cannot do a thing as he and none of the other prisoners can take hostages and make demands as there are no guards at Sona. What will happen inside when the men have to live two days without water?