Lorelei Lee is a beautiful showgirl engaged to be married to the wealthy Gus Esmond, much to the disapproval of Gus’ rich father. When Lorelei goes on a cruise accompanied only by her best friend, Dorothy Shaw, Esmond Sr. hires a private detective, to follow her and report any questionable behavior that would disqualify her from the marriage.

The circuit judge lion delegates the job of trying the notorious bank bandit, Fowler Means, to Snagglepuss. Snag holds court in Loophole Mesa, a frontier town. After the prosecutor comes down with a case of lead poisoning -- from the bandit's bullet -- Snagglepuss has to take over his job.