Sean McGraw

Susan takes the escape into her own hands; Lechero reveals a secret buried beneath Sona; Sofia uncovers more of Whistler's past; Mahone's freedom hinges on his testimony.

Walker breaks in a new partner while protecting Alex from an ex-sheriff turned prisoner who blames Alex for putting him in jail and seeks revenge.

Deke and Marge embrace new roles to accommodate his new status; things start to thaw between Gordo and Trudy.

A criminal Walker arrested years ago is released from prison. But once out, goes back to a life of crime. Trivette goes undercover to infiltrate his gang and get evidence to arrest him again. Alex and Carlos help a teen stay out of gangs.

When one of Walker's friends in the DEA goes missing and suspected of being kidnapped by Mexican drug lords, he decides to take an unexpected vacation...and heads south of the border.

A group of men kidnap a wealthy businessman and take others who were standing near. Alex is one of the people kidnapped. While the kidnappers are arranging for ransom, Alex manages to call Walker with information to help him find them.