Michael and Lincoln form a tenuous alliance with Kellerman; tragedy strikes the Mahone family; Bellick takes action to prove he is still in charge at Fox River.
Worried he doesn’t have much longer to live, Walt looks to provide for his family by enlisting Jesse for a marathon meth cooking session in the desert.
During a routine investigation, Jack and Dan are thrust into a much bigger case involving hired assassins, drug smugglers and a stolen golf bag.
Dan and Jack team up with a U.S. Marshal after Dan mistakenly exposes a Witness Protection Program participant.
Dan "borrows" money from the Narcotics Division to set up an off-the-books sting operation after getting suspended; the unauthorized detective work inadvertently funds a prison break.