From the Back of the Book:
Earth giants, frost giants, fire giants... when the giants strike out to raid and destroy the civilized lands, it becomes apparent that something much larger and more dangerous lurks in the background. A group of adventurers must locate the spark that has ignited this spreading fire and find a way to snuff it out before it engulfs the world.
Revenge of the Giants is a super-length adventure that takes characters from 12th level to 17th level. It includes background material, adventure hooks, new monsters and magic items, and a powerful, unfolding story that shows off the best of the paragon tier of play. It also includes a double-sided battle map depicting key encounter sites, designed for use with D&D Miniatures.