The Encyclopedia Of Science Fiction:

A man and his teenage children are in a cave when a solar flare creates a virus(!) which kills, then reduces to something like sand, almost everybody on Earth. The family journeys across California to their eastide home where they hope to find the mother alive. They encounter other survivors, some unfriendly, and packs of dogs running wild. Routine stuff, competently directed; an interesting twist has the teenagers showing initiative while the father is passive.

MS Cinemania 1994 - Leonard Maltin Review:

Graves and his family are among survivors of a radiation explosion. 'End of the world' tale by Lewis John Carlino; unevenly spun, indifferently acted.