Comments: The world has been burned by dragons, which had been lying dormant under London for centuries. It sounds far-fetched or fantastical, however, it's really well-done. This source of apocalypse is fought by an English survivor and an American army guy.
I really liked the film. The characters are fairly well fleshed out and the plot makes sense. It is a different idea, too, which may be why I liked it so much.