While on holiday in Rhodes, Athenian war hero Darios becomes involved in two different plots to overthrow the tyrannical king, one from Rhodian patriots and the other from sinister Phoenician agents.

A cop chases two hippies suspected of a series of Manson family-like murders; unbeknown to him, the real culprits are the living dead, brought to life with a thirst for human flesh after government officials conduct pest control experiments using subsonic waves in the area.