The womanizing Falcon (Tom Conway) and his oafish sidekick Goldie (Edward S. Brophy) are planning a ‘no-women allowed’ fishing vacation in upstate New York, when they rescue their pretty Brazilian hotel neighbor, Luisa Braganza (Madge Meredith), from being kidnapped by car and instead travel to Miami. It turns out that her uncle, Enrico Braganza, has invented a formula for synthetic diamonds that he’s selling to a colleague, Denison, in Miami. But an international diamond merchant, Sutton (Robert Warwick), wants the formula and hires a gang to steal it. They first murder Enrico and then Denison, framing the Falcon for both murders. In the end, the Falcon thwarts Sutton’s plan to kidnap Luisa on his yacht in order to get the formula and helps the police round up the rest of the gang–Benny, Doris and Mike.