After Peter's dad, Francis, dies, he finds out from Thelma that his real father lives in Ireland. So Peter and Brian head there in search of his father, who ends up being the town drunk, which is a great honor, and he challenges him to a drinking game to prove his paternity. Meanwhile, Stewie acts out and Lois spanks him, but he quickly realizes that he likes it and does whatever he can to get into trouble.

Peter takes Quagmire to the airport for work and messes things up, causing Quagmire to lose his job as a pilot. Quagmire can't find another gig, so Peter and Cleveland devise a plan to help him get his old job back. When the plan flops, Quagmire receives advice from his idol, Hugh Hefner, which leads him to save the day.