It's introduced by the US Treasury Secretary so there isn't a great deal of jeopardy for us in this rather oppressively narrated join the dots mystery. Once we've established just how many branches of his department there are, we are introduced to "Danny" (Dennis O'Keefe) and his new partner "Tony" (Alfred Ryder) who are on the case of a sophisticated counterfeiting ring. The bureau has already seized some of their highly convincing fake currency and with there being rumours of the whole operation having an international slant, it's going to be a delicate matter for them to get to the bottom of things. Their best plan of attack is to infiltrate the gang of the "Schemer" (Wallace Ford) whom we all know is not the kingpin, but he knows who is pulling the strings. Can they stay alive long enough to track down the leader of this nefarious gang and bring them all to justice? What is pretty evident here is that their work was dangerous and their foes ruthless - and to be fair to director Anthony Mann he does manage to convey that sense of menace to the proceedings. Sadly though, for me the acting is all just a bit too nondescript and the often quite dimly lit and claustrophobic settings reminded me more of one of the Rathbone/Bruce "Sherlock Holmes" adventures only without so much charisma in front of the camera. This decently paced feature has something of the public information film to it - beware that Uncle Sam will get you in the end sort of thing, and though it's all perfectly watchable it's too long and far too predictable.