Nature is under control. The company shoots cannons regularly to create controlled avalanches. The family is eating at a patio restaurant when one of these avalanches seems to threaten their very lives. Amid a fog of snow dust, husband grabs his gloves and cell phone, running from the table, leaving his wife and kids behind. Very quickly, the threat turns out to be no danger at all. Husband returns. They resume their holiday, at first acting as if nothing has changed. But man is a moral animal, and a great deal has changed. There are consequences.
While by no means "Lord Jim", this story has some depth and is quite well told if slowly developed. It takes its time as the event sinks in. Normality still seems the rule. The husband doesn't recognize much less realize what his behavior has been. The wife does. The family reactions to the disturbance in their domestic tranquility begin to seep out, while they are alone and also as they interact with other travelers. The pretenses and superficiality of their lives begin to fall away.
Two more threats of different kinds will transpire, giving new opportunities for husband and wife to react.
As a story and film, "Force Majeure" doesn't ascend the highest heights of investigation into human nature, but it is a good effort within the confines of its chosen art form.