Exploring, the group stumbles upon a voodoo ritual in the cellar. It is being conducted by the doctor, who is in reality a foreign spy, trying to acquire war intelligence from a captured US Admiral whose aircraft had crashed in a similar fashion on the island. McCarthy comes under the doctor's spell but Summers comes to his aid. Information is being transmitted to Barbara, but Summers stops the ritual. The interruption causes the zombies to turn on their master. Sangre shoots the pilot but falls into a firepit and dies. With Sangre dead, all the zombies are released from the doctor's spell.