Barely escaping an avalanche during a family ski vacation in the Alps, a married couple is thrown into disarray as they are forced to reevaluate their lives and how they feel about each other.

Shy 14-year-old Duncan goes on summer vacation with his mother, her overbearing boyfriend, and her boyfriend's daughter. Having a rough time fitting in, Duncan finds an unexpected friend in Owen, manager of the Water Wizz water park.

Greendale's best worst former study group learns lessons in life and the chemistry of weirdness as it graduates to a momentous ending. Maybe.