Bret Maverick meets up with brother Bart in New Orleans where they plan to obtain passage on a riverboat where big money poker games are held but end up getting involved in the kidnapping of the riverboat owner's daughter instead.

Bret and Dandy Jim Buckley bet heavily on a boxing match but when their fighter withdraws it's up to Bret himself to step into the squared circle.

Against his better judgment, Bart teams up with Samantha Crawford to recover stolen Treasury plates.