Complete story — includes the ending
Skyler, Walt Jr., and Holly go under DEA protection at Hank and Marie's home. Hank sends Gomez to search the industrial laundromat, but they do not find anything. Gus implies to Jesse that the police attention is Walt's fault, and states that Walt must be killed to protect the operation; Jesse again refuses to cook if Walt is killed. Andrea calls Jesse to the hospital because her son, Brock, is in critical condition with a mysterious flu-like illness. Jesse finds the ricin vial missing and confronts Walt at the latter's barricaded home, suspecting he poisoned Brock. Walt convinces Jesse that Gus is behind the poisoning, as the final manipulation to turn Jesse fully against Walt, and the two agree Gus must be killed. Gus comes to the hospital and demands Jesse return to cook, but Jesse refuses to leave. Walt attempts to kill Gus by planting a homemade bomb under Gus' car, but Gus, sensing danger, abandons the vehicle in the hospital parking garage.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Breaking Bad season 4. HTML formatting and reference markers removed. · Content license