Gus approaches Walter with an offer of million to cook meth in a huge state-of-the-art underground lab, hidden beneath an industrial laundry facility owned by Gus.
Walter is initially reluctant until he learns Jesse is cooking again, and agrees to the offer.
Meanwhile, Tuco Salamanca's two cousins journey from Mexico to Albuquerque to kill Walter and avenge Tuco's death, under their uncle Hector's orders.
Gus is able to call them off by suggesting they instead go after Walter's brother-in-law Hank, as he is the one who actually killed Tuco.
Hank is assigned to the El Paso office by the DEA, but stays in Albuquerque to trace a weak and questionable lead in the "Heisenberg" case, eventually discovering evidence that ties the RV to meth production.
When Hank tells Walter about this lead, Walter races to help Jesse throw Hank off the case long enough for them to destroy the RV and any evidence tying it to meth production.
Furious, Hank goes to Jesse's house and violently assaults him.
Hank is ordered off duty, and after he leaves his hearing, he is attacked by Tuco's cousins.
Though shot and paralyzed from the waist down, Hank manages to kill one and fatally wound the other.
The DEA begins to investigate the assassins; Gus uses this to seize control of distribution from the hands of the Mexican cartel.
The third season of the American television drama series Breaking Bad premiered on March 21, 2010 and concluded on June 13, 2010.