David Sharpe has just joined the State Police, and younger brother Frankie Darro and sister Charlotte Henry are celebrating at breakfast, with Charlotte's fiance and fellow State Policeman, Kane Richmond. Frankie wants to be a State Policeman too, so when Richmond and Kane are called out to investigate a double murder, Frankie goes along. It turns out to involve a trigger-happy goon and forty thousand dollar's worth of illegal gold, and leads to Willy Costello, a man who owns a gold refinery.
It's one of ten movies that Maurice Conn produced from Peter B. Kyne movies from 1935 through 1937. They all starred Frankie Darro. They also were distributed through States Rights, which meant they were produced on the cheap, with people who used to be stars, but were now happy to get a regular paycheck. That certainly describes ex-child stars Darro and Henry.
Darro was born in 1917 and first appeared on the movie screen in 1924. As he aged out of juveniles, he played uncredited bits and even did stuntwork -- apparently he was the man in the Robbie the Robot suit in FORBIDDEN PLANET. He kept working at whatever he could get through more than 150 appearances in features and about 50 television roles, with time out to serve in the Navy as a pharmacist's mate during the Second World War. He worked throughout his life, and died on Christmas, 1976.