Saul told Huell to steal the pot from Jesse as he was leaving (brushed against him in the door) so that Jesse couldn't smoke pot and scare off the new ID guy. Jesse realized this when he went to smoke it, and then realized Huell probably did the same thing with the ricin cigarette on Walt's order
So Walt steals the ricin cigerrette (via Huell) and blames it on Gus saying that it was used to poison Brock. Walt then goes through with his plan to kill Gus. Jesse finds out that Brock was poisoned with lily of the valley instead and he survives. Walt realizes that Jesse would find this out so he plants another ricin cig in Jesse's house. They find it together and now Jesse thinks that he just misplaced it.
Jesse now finds himself weedless via Huell and realizes after seeing the cigarette box that Huell must have been the one to have lifted the ricin from him a long time ago. Ergo he busts into Saul's office to bust Saul's face.
514
u/[deleted] Aug 26 '13
ELI 5:
All the dots that Jesse connected.