A combination of a massive earthquake and huge storm strikes the USA at the same time, destroying basically everything. We see the skyscrapers of New York collapse with the population fleeing in terror. As usual the massive disaster is personalised through the lives and struggles of a few ordinary people. Those being Martin Webster (Sidney Blackmer) and his wife (Lois Webster) and children. Martin is separated from them after the main disaster strikes.
Martin spends time alone, not knowing if anyone else survived. Then he discovers Claire (Peggy Shannon) who has escaped from a rough gang led by Jepson (Fred Kohler)...
This isn't that great a film, the acting is rather stilted and the film takes a long time to get going. The effects are good though especially for their day. The film also includes an interesting surprise for Martin and a rather awkward situation. An interesting watch but not much more.