Hospitalized Robbie asks to see Herbie, but Herbie has been impounded for wreaking havoc in a used-car lot.
Susan's ex-fiance has Herbie taken to the auto crusher to sabotage Jim and Susan's honeymoon.
Susan threatens to call off the wedding when she finds Jim with an old girlfriend.
Herbie interferes with a vehicle inspection, causing Jim's driving school to be shut down.
Herbie and Jim rescue a bank robber's hostage, then stop her marriage to a banker.