Saving a ski resort hotel

Four pals are stuck in a rut in adulthood: Adam has just been dumped, Lou is a hopeless party animal, Nick 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.

After their first adventure with the Hot Tub Time Machine, Lou and Nick are living very well off their ill-gotten gains, while Jacob still cannot rely on Lou to be a positive role model. When an unknown assailant breaks into Lou's mansion and shoots him, Nick and Jacob take him for another trip in the hot tub. They emerge in the year 2025, where they must figure out who shot Lou and prevent it from happening again.

T.J. and his friend Dexter quit their jobs in Detroit to become ski-instructors in Aspen. While T.J. advances to the most popular instructor of the school during the season, he has to take care for Dexter, who's future is less bright and who's eventually thinking about jobbing as drug courier - bringing their friendship to a test. Meanwhile the rich business woman Brice supports T.J. in his writing ambitions and invites him to live at her home. But in her absence he falls in love with the stunningly beautiful blond radio moderator Robin.

Rival groups in a skiing school do battle on and off the piste. One gang are rich and serious, the other group are party animals.

Dave has been enjoying life until he receives an ex-girlfriend's wedding invitation. Even though Beth dumped him years ago, Dave knows it's their destiny to be together. So Dave embarks on a quest: to save Beth from certain death-by-boredom, return balance to the universe, and maybe get in a little awesome skiing. Dave convinces his buddies to join him in his quest to make things right.