Jack enters the sheriff's office and Catherine tells him they need his fingerprints. Jack's all, "I totally didn't kill Rizzo or anything, so why?" and Catherine explains it's to help the FBI distinguish the prints of the third man versus law enforcement on the scene. But while Jack's fingerprinting himself, Ralph says they might not need the feds; they've found Myrna's boyfriend, so he thinks the two of them tried to rob Rizzo. Catherine says it's an interesting theory, but she still wants the FBI in on it. Ralph says to Dixon, "Hey, how's your dumb plotline going? You know everything about cars since my crash course this morning?" and I guess Dixon's going undercover after all, since this is always useful. Ralph asks Jack if he wants to go after Netter, but Jack begs off citing paperwork.
So Dixon in a leather jacket and white T-shirt -- you know, the Brando! -- arrives at the race and meets Pete. Maybe if Dixon wants to keep going undercover, he should stay in character instead of telling Pete he wishes he weren't working (because of all the women there he wants to have sex with it seems). He's surprised to find out Pete still plans to race, but Pete says it would look suspicious if he didn't, so Dixon allows it. And Pete thanks Dixon for taking a chance on him. By this point Dixon might as well have just worn his damn uniform to the race.
So Pete gets his car and drags some guy in a souped-up jalopy -- at least until his steering wheel starts rattling and he loses control, crashing his car into a parked car that goes up in a ridiculous fireball. Must be Douse Your Car in Gasoline Night!
After the commercial break, Mike Netter is in police custody and Catherine notes he's got priors for robbery, assault and drug violations, which -- when they question him -- she says will help her convince a jury he had something to do with this. A worried Netter says Rizzo was paying Myrna to lure somebody to the house. He didn't see anyone there at first, but when he came back a few hours later, he found the bodies. He only remembers passing a white pickup truck on the way back -- we get a helpful flashback that suggests it wasn't a good look at Jack or anything.