Cole S. McKay

The deputies return to the force and begin putting new recruits to the test, hoping to add a new member to the ranks of the Reno Sheriff's Department.

Reno helps an ex-Army Ranger from his former unit who is wanted for several murders and the hijacking of pharmaceutical trucks.

Walker and Carlos must find an escaped convict who was framed for a murder in prison by corrupt, drug-trafficking guards.

Caleb Hooks, Walker's archenemy, kidnaps Alex and Trivette and imprisons them in a tank that slowly fills with freezing water.