It uses a fairly interesting premise; in an alternate version of our world, natural disasters and very nasty weather have made things a bit rough for people.

An astral projection of himself (presumably his soul) leaves his body and wanders through his mirror into an alternate version of his house.

An alternate version was made showing actors looking back on photographs and memories, reflecting the song's subject matter, though this was very rarely shown.

The alternate version progresses in much the same way, until the very end.

But soon, the family discovers a small door in the basement of the house leading to an alternate version of earth.