Fast on the Draw plot
When Jimmy "Shamrock" Ellison was young, the outlaw "The Cat" killed his parents. Shamrock is now a marshal against his will. Shamrock rescued Ann from bandits and was subsequently appointed marshal by the grateful townspeople. In this role, Shamrock manages to disrupt a robbery by Tex and his band of outlaws. When Shamrock learns that Tex is teaming up with The Cat, he not only goes after Tex and his band of outlaws, but also immediately sets out to take out The Cat for good. Shamrock's comrade Russ 'Lucky' Hayden wants to assist him in that.