The Song of the Sirens

Desperate to make Medusa fall for him Hercules seeks out cave-dwelling sorceress Circe, who gives him a jar containing the Song of the Sirens and when she hears it it has its effect on Medusa. Then she suddenly falls ill and when Hercules returns to ask Circe to cure her he finds that he has walked into a trap, designed to lure Jason into Circe's clutches - thus fulfilling a prophecy by the Oracle. With Medusa dying and Hercules turned into a pig Jason is forced to agree to a dangerous request to save his friends.