When Lechero, T-Bag and Bellick run to the fence, they are captured by the guards. However, this was the real plan of Michael that waits with Whistler, Mahone and McGrady the exact moment to leave the hideout. When Bellick shows the tunnel, the quartet breaks-out Sona, meeting with Lincoln on the beach, where Whistler notes that he lost the book with the coordinates. They use breathing apparatuses and swim underwater to a buoy, waiting for Sucre. However their fellow is cuffed to a file drawer in Sona. But McGrady's father finds the boat 312 moored in the marina and he rescues the escapees. McGrady follows with his father, while the car of Lincoln and the fugitives is chased by Gretchen's men. However they find the GPS in Whistler's watch and they lure the gangsters in a shootout later. When Sucre is released in Sona, T-Bag sees him and discloses his identity to the guards. Meanwhile, Mahone says goodbye and Whistler escapes from Michael and Lincoln, leaving them with nothing for a negotiation with Gretchen.
The escape of Michael and the other inmates, luring the scumbags, is the engaging part of this show. However, the attitude of Whistler leaving the brothers and not having the coordinates by heart is disappointing. The coincidence of T-Bag seeing Sucre in Sona during the torture session is also a forced situation. My vote is eight.
Title (Brazil): "Inferno ou Alto Mar" ("Hell or Deep Sea")