Vince Vaughn's Wild West Comedy Show: 30 Days and 30 Nights follows the popular actor from "Wedding Crashers" as he tours across the country with his unique and irreverent variety show. Vaughn invited four stand-up performers from Hollywood's Comedy Store to travel to 30 American cities along with musicians, improvisational performers and Vaughn as emcee at nightclubs, comedy stages and bars. Director Ari Sandel covers both the onstage and backstage action as he interviews comedians Ahmed Ahmed, John Caparulo, Sebastian Maniscalco and Bret Ernst about the life experiences that brought them to the entertainment industry, both personally and professionally, as well as rib one another. Along the tour, special guests like Vaughn's "Swingers" co-star Jon Favreau and actor Justin Long stop by to participate in skits and and join in the revelry. Country stars Buck Owens and Dwight Yoakam add the Wild West sound with musical performances between the routines and comedy sketches.