Amidst Old West lawlessness, an insurance company asks investigator George O'Brien (George O'Brien) to look into some missing gold. George's work has just begun, however, when he runs into strangers Moe, Shemp and Larry (The Three Stooges), a trio of daffy but daring traveling salesmen who help him foil a robbery. Afterward, George talks them into teaming up to stop future thefts. But, with powerful interests behind the robbery scheme, George and his new partners face a big challenge.