When American brothers Todd and Jan Wolfhouse travel to Germany to spread their grandfather's ashes at Oktoberfest, they stumble upon a super-secret, centuries old, underground beer games competition--"Beerfest," the secret Olympics of beer drinking. The brothers receive a less than warm welcome from their German cousins, the Von Wolfhausens, who humiliate Todd and Jan, slander their relatives, and finally cast them out of the event.