The Mesquiteers try to help their friend build a telegraph system, despite a local newspaper editor's attempts to sabotage the lines.
Robert Livingston
as Stony Brooke
Bob Steele
as Tucson Smith
Rufe Davis
as Lullaby Joslin
Pauline Moore
as Marcia Kelton
Weldon Heyburn
as Jeff Bradley
Carroll Nye
as Jim Chapman
Tom Chatterton
as Major R.C. Kelton
Si Jenks
as T.L. Johnson (dentist)
Mary Field
as Alice Chapman
John Merton
as Henchman Mason
Rex Lease
as Engineer Reynolds
Robert Blair
as Stage passenger