A couple fights to hold their relationship together as a memory loss virus spreads and threatens to erase the history of their love and courtship.

Four pals are stuck in a rut in adulthood: Adam has just been dumped, Lou is a hopeless party animal, Craig is a henpecked husband, and Jacob does nothing but play video games in his basement. But they get a chance to brighten their future by changing their past after a night of heavy drinking in a ski-resort hot tub results in their waking up in 1986.