Synopsis by Hal Erickson
Pity poor police captain Dugan (Harry Carey). As if he hasn't got enough trouble with the green recruits that Headquarters continues saddling him with, he also has to solve a series of high-profile jewel robberies. Enter brash rookie cop Danny Blake (Dick Foran), whose know-it-all attitude drives Dugan right up the proverbial wall. Even more irritating are Blake's newfangled "scientific" crime-solving methods, not to mention the fact that the newcomer is sweet on Dugan's pretty niece Kathleen Burke (June Lang). Eventually, of course, Blake and Dugan work side-by-side, shoulder-to-shoulder to catch the head of the jewel thieves in the act (to reveal his identity would spoil the fun, though it isn't hard to figure out).
investigation, investigator, jewel-robbery, opal, police, robbery, rookie, undercover