Blood and Stone

A prehistoric shapeshifter is posing as the Mayan god Kukulcan, killing thousands in the Yucatan and building a vampire army. The men and women of Detachment 1039 must recruit an unlikely ally to stop the shapeshifter: a vampire imprisoned at Alcatraz nearly forty years ago. Will the vampire prove a help or a hindrance when the team journeys south to stop the shapeshifter's reign of terror?