The great lizards of Jurassic North America were mighty creatures -- even the smallest hit-and-run scavengers could wreak disaster in a modern city. But as mighty as these lizards were, they were no match for the forces of nature. When a monumental rainstorm transforms a shallow lagoon into an enormous lake, hundreds of beasts find themselves trapped, helpless, destined to become the daily offering for the winged creatures of the skies.