A young, newly-appointed rookie state trooper, John Shields, is celebrating with his sister Jane, his younger brother Freddie and Tom Marlin, Jane's fiancé and also a trooper, when they hear over the radio that two bandits have just killed a lawyer and his watchman. John and Tom set out in their patrol cars in hopes of capturing the killers, followed by Freddie who hopes some day to qualify as a trooper. Freddie encounters the two two bandits, Spike Doland and Butch and manages to get away with the bag of gold they had stolen. While chasing Freddie they are recognized by John who they kill when he tries to arrest them. Freddie then takes matters into his own hands in seeking to capture the killers of his brother.
Frankie Darro
as Freddie Shields
Kane Richmond
as Tom Marlin
Charlotte Henry
as Jane Shields
Willy Castello
as Flash Slavin
David Sharpe
as John Shields
Carleton Young
as Spike Dolan
Pat Gleason
as Joseph 'Butch' Barker
Frank Austin
as Endenberry / Doc Clark
Frank Sarasino
as Tony - the Peddler / Rankin - U.S. Secret Service
Earl Dwire
as Finnegan