Per the will of their recently deceased grandfather, brothers Jan and Todd Wolfhouse (Erik Stolhanske and Paul Soder) travel to Germany to attend Oktoberfest. When they accidentally start a brawl that ruins the fest, they are whisked away to an underground beer drinking competition called Beerfest, where they are told that their grandfather stole the recipe to the greatest beer in all the land. To add insult to injury, Jan and Todd are crushed in the competition. Jan and Todd return to America and put together a Beerfest dream team to avenge their loss. They also discover that their grandfather was the rightful heir to the brewery and recipe. Armed with newfound inspiration and a quest for redemption, they engage in an epic alcohol-infused battle for their namesake and pride.