Bug

Hank and Walt joke about the mineral show as code for a strip club, but Hank is actually excited about the investigation.

Walt insists on leaving without going inside Los Pollos Hermanos. Hank plugs the tracker into his computer and sees Gus only goes between home and that restaurant.

Walt finds Jesse has started the cook and sees the ricin still in his pack.

Skyler calls Walt from the car wash, reporting good profits and suggesting he quit his second job. She tells him to consider an exit strategy, and Walt replies he is working on it.

Hank calls Walt and asks for a ride to the Los Pollos Hermanos distribution center. Walt lies about having an upset stomach and convinces Hank to delay the trip for a day or two.

Walt calls Mike to warn him that Hank plans to snoop around the farm.

Skyler rings up false purchases between actual customers at the car wash. Ted shows up and greets her, saying she looks happy.

Ted tells Skyler about the IRS audit and the criminal investigation. Skyler realizes this could lead to an investigation of the car wash. She refuses to help him uncook the books, fearing for her own safety.

Jesse asks Mike if Gus will kill Hank, discussing the potential fallout. Mike questions if Jesse would have a problem with that, and Jesse says who cares what he thinks.

A sniper suddenly kills one of Gus' men in front of Jesse. Mike tackles Jesse to the ground and shoves him to cover behind a metal shack.

Walt assumes Gus ordered the man's death and launches into a diatribe. Mike orders him to shut up and warns him against ever calling the police on one of Gus' men again.

Jesse thanks Mike for saving him and asks why Gus walked into the gunfire. Mike explains the cartel needs Gus' distribution network, so they won't kill him. Jesse realizes the rest of them are open season.

Skyler appears at the IRS building dressed in a revealing outfit and feigning stupidity. She explains Ted's unreported income by claiming she didn't record electronic payments and used Quicken. The agent buys the act and drops the investigation.

Skyler tells Ted to pay the $617,000 in taxes and penalties. Ted says he has no assets left to sell, and Skyler realizes he's already spent the money.

Gus invites Jesse to his home and prepares food. He asks Jesse if he can cook Walter's formula alone. Jesse refuses and threatens to die if Gus kills Mr. White. Gus explains he needs Jesse's help to prevent a war with the cartel.

Jesse tells Walt that Gus wants him to go to Mexico to teach cartel chemists how to cook the blue formula. Jesse is scared he will mess up and get them all killed. He asks Walt for help and coaching.

Walt confronts Jesse about visiting Gus's house and not poisoning him. Jesse admits he didn't have a chance. Walt reveals he bugged Jesse's car and knows he was there for two hours and 18 minutes. Walt accuses Jesse of signing his death warrant and tells him to go to Mexico and screw up.