The film stars Tim Holt as Terry McVey, Eddie Kane as Gordon West, Marjorie Reynolds as Barbara Adams (alias Bernice Allen), Byron Foulger as Frank Adams, Louise Currie as Gail Sargent, Eddie Dew as French, Helen Holmes as Aunt Althea Carter, Lloyd Ingraham as Pop Stebbins, Eddie Kane as Gordon West, and Tom London as the Silver City Sheriff.

[2] In the Old West, cowhand, Terry McVey, is hired by the United States Secret Service to go undercover in Silver City, Nevada and investigate a counterfeiting ring after the disappearance of Frank Adams, a noted engraver.

Meanwhile, Barbara, posing as Bernice, arrives at the Silver Bar Ranch stating she wants to board there for a few days.

Terry and Barbara become suspicious of French, one of West's men, and follow him to the Silver Queen mine, a hideout where Adams is printing the counterfeit money.

However, Pop Stebbins arrives with the medicine show wagon which the boys use to transport themselves to the Silver Queen mine.

With the ranch now in the hands of Aunt Althea Carter, Terry bids farewell to Barbara, promising to return.