Sophie Clutts gives Slippery Slim, the postmaster, a postcard, telling him to mail it. Slim reads: "Dear mother: 1 will marry the boy who gives me a ring upon my birthday." Mustang Pete calls at the store and Slim sells him a ring. Slim then changes the postcard to read call instead of ring, which he "accidentally" places in Rawhide Bill's box. Alter Rawhide reads it and discovers it does not belong to him, he re-mails it. Slim then substitutes the word corset for calf, and another cowpuncher gets it. Slim manages to get the ring from Mustang Pete and loads the box with gunpowder. Rawhide sees the exchange and tells Mustang about it. The box is then placed in Slim's pocket. That evening things begin to hum around Sophie's home, when she is presented with the various gifts, but the ring caps the climax, blowing both Sophie and the room to pieces.
—Moving Picture World synopsis