Hellboy, a bloodred, cloven-hoofed demon raised by the United States government, is a top field agent for the Bureau for Paranormal Research and Defense. He questions the unknown -- then beats it into submission.

In the upper reaches of the Himalayas, Hellboy's ex-girlfriend, archaeologist Anastasia Bransfield, believes she has found the location of the legendary "Dragon King Pool" -- thought to be the ancient dwelling of an evil dragon who inflicted horrific devastation on the land and its people. Every year the villagers would sacrifice a child to placate the beast, until one day an...