Realising how gullible people are,Bart and Homer become grifters,conning people out of money - until they are arrested by a law officer who is actually another grifter,who steals their money. Resuming their dishonest career they find that a scam involving a supposed car theft goes wrong after Groundskeeper Willie shoots and kills Seymour Skinner and they end up in court. In fact the ashooting and court are in fact set-ups,designed to scare them out of their grifting ways.
—don @ minifie-1