Truck drivers Steve Hackett and Bill Purvis are fired from their jobs with the West Coast Trucking company for not using second-gear going down steep grades. Davis, the company vice-president, surprisingly asks them to carry a load of merchandise to Arrowhead and offers a $1000 bonus. He tells them it is a load of lettuce. Several miles out of Los Angelese, they are stopped by a mob of lettuce-farm workers on strike. When the first crate is tossed off the truck, it explodes and the two pals learn their merchandise is a cargo of dynamite. The workers let them proceed and they crash into a car driven by Mary Stevens, whom they had met at a restaurant. She and her dog, "Butch" (played by a Credited dog named Stooge), join them and they deliver their cargo, and learn unscrupulous real-estate operators have jammed the locks on the dam in order to ruin the ranchers and farmers and take over their property.
Ralph Byrd
Doris Weston
Ward Bond
Robert Emmett Keane
Ben Hewlett
Charles Williams
Davison Clark
Byron Foulger
George Anderson
Edwin Stanley
Ben Hendricks Jr.
Sterlita Peluffo
Lew Kelly
Harrison Greene
George Magrill
Anna Demetrio
Sam Appel
Stanley Blystone
Al Bridge
George Cleveland
Frank Darien
Eduardo Durant
Robert Fiske
James Flavin
Harry Harvey
Oscar 'Dutch' Hendrian
Jack Hendricks
Reed Howes
Tiny Jones
Ethan Laidlaw
Edna Lawrence
Chris-Pin Martin
Pat McKee
Dave O'Brien
Frank O'Connor
Jack Rockwell
Carlos Ruffino
Max Wagner
Nellie Walker
Dan White
Maston Williams