Heyes and the Kid have been promised $500 if they arrange a meeting between "Big Mac" MacCreedy and his longtime competitor, Armendariz, in order to end the feud. Instead they are captured by Armendariz´ men and driven off his land.

But Heyes has gotten the brilliant idea of trying to use the sister to get to Armendariz, so he and the Kid tells Big Mac of all her beauty. Big Mac falls for their story and is prepared to give them $5000 if they settle the whole business.

They return to Armendariz´ ranch and try to sell her on the idea as well, but she doesn´t seem to buy it. They´re once again driven off Armendariz´ land. Heyes encourages the Kid to have some faith, but when they sneak back in to talk to the sister, they are captured - to be brought to the border the next day. However, they manage to convince the sister that Big Mac is catholic, and that he desperately wants to meet her.

The Kid fears that it won´t be so easy to make Big Mac pretend that he´s catholic - but when they tell him, he turns out to actually be catholic. He agrees to meet her in a church, but when he gets there, Heyes and the Kid tell him that she has been kidnapped - and that he must help rescue her, before Armendariz suspects him of being involved...