This was long thought to be a lost film, but it has been resurrected using a number of different prints so quality varies, but entertainment is still consistent. This is an odd film being a mixture of genres namely thriller,disaster, musical and quasi-documentary about the post office. A number of crimes involving the post office are shown mainly tragic, but a couple are very funny. Eventually it centres on a train robbery of old banknotes en route to the federal mint. Ricardo Cortez is all suave self assurance as the leading detective assigned to the case, while Patricia Ellis is drop dead gorgeous as a chanteuse who may be involved with the robbery. Bela Lugosi as a club owner with links to a gambling syndicate only has a small role. Last part of the film takes place in a flood with stock footage lifted from the Johnstown flood interspersed with new studio shot scenes which blend quite well. Some may dislike the jingoistic tone of the film regarding the post office, but the movie fairly zips along and the denouement is exciting.