In modern-day LA, three increasingly distant friends; Adam (John Cusack), Lou (Rob Corddry), and Nick (Craig Robinson) live equally depressing lives and are finally brought back together by Lou's failed suicide attempt. In an attempt to cheer him and themselves up, they plan to revisit their debauchery-filled playground from their high school years, the famous Kodiak Resort. Adam's teenage nephew, Jacob is brought along to join in the fun, but upon arrival at the now-decrepit resort, all hope of a return to the fun-filled weekends the trio experienced in the 80's seems lost. In one last desperate attempt at fun, alcohol is combined with a hot-tub found outside the hotel room, and the rest of the night is a blur. By morning, everyone is ready for some fun on the ski slopes, but it doesn't take long to realize something has changed. Big hair, neon clothing, and cassette players. The hot tub has transported them back to the 80's! If the trio of friends has the opportunity of a lifetime; to relive the best years of their lives. They realize they can set about changing the future for the better, but must watch out not to change too much, or else Jacob will cease to be born.