Uranium has been stolen by a criminal gang, the G-men led by John Howard are on the case and tracking the shipment using radar - which has almost supernatural abilities in this film!
However, despite the magic of radar the G-men still need to use a shapely blonde to really get the goods on the criminal gang.
This is a decent watch but the premise is pretty ridiculous, though the radar nonsense is pretty funny. Apart from that the film is a pretty run of the mill and very low budget crime drama.
Look out for the mention of Dick Tracy by radar expert Static (Ralph Byrd) who actually played Tracy in the late 1930s and 1940s!