Wrigley Faithful is the story of Bailey Dwyer, an idealistic young campaign staffer from Chicago who is undergoing Pre-Cana counseling with his fiance Megan in order to get married in the Catholic church; however, when the campaign becomes embroiled in a pay-for-play scandal and Bailey begins to lose faith in the candidate he is supporting and the marriage he is about to enter into, it's a Catholic priest, struggling with his own faith, who helps Bailey overcome his doubts and realize that the most important thing to believe in is himself.