Dennis Hopper and Peter Fonda are hippie motorcyclists who smuggle cocaine from Mexico to Los Angeles. From the money they earned, they pay for a trip to New Orleans to visit Mardi Gras while on their way to Florida. On their travels, they meet a hitchhiker who takes them to a hippie commune. They end up in prison and an alcoholic lawyer named George bails them out. They become friends with George, who joins their travels…