The stooges are investigators for the Onion Oil company. The company's service stations are being robbed by a gang of crooks, so the boys pose as gas station attendants to capture the bad guys.
Moe Howard
as Moe
Larry Fine
as Larry
Shemp Howard
as Shemp
Stanley Blystone
as Crook
Emil Sitka
as Emil, a Customer
Gene Roth
as Fuller Grime
Joe Palma
as Crook (uncredited)
Blackie Whiteford
as Crook (uncredited)
Nanette Bordeaux
as Louise (uncredited)
