An archeology professor unearths a dangerous artifact, unwittingly releasing a creature that is able to kill with the power of its bone-splitting scream.

Once upon a time on the Shimmering Sea ... a terrible figure called Gruesome George rose from the depths. In his wake arose untold legions of ravenous zombies, giant monsters, and even stranger creatures. But who or what is Gruesome George scouring the oceans for? Who is the Red Widow? And why is the notorious Scourge of Shang Ti, Fu Shan, fighting by the zombie lord s side? Join Smilin Jack O Hurlihan, Esmeralda, and Dr. Theopolis as they attempt to solve this intriguing mystery and defeat the Zombie Pirates!