Sorceress

To maintain his powers, the evil wizard Traigon must sacrifice his firstborn child to the god Caligara. After giving birth to twin daughters, his wife refused to tell Traigon which was born first, and he inflicts a mortal wound upon her. She flees with the young children and convinces a peasant to raise them as warrior boys. When Traigon appears, his wife is able to stab him with a spear and magically banish him for 20 years before she dies.

When Traigon returns, he resumes hunting down his now-adult daughters (the Harris sisters), still intending to sacrifice them to Caligara. The twins enlist the help of a satyr, Pando, a barbarian, Erlik, and a Viking, Baldar, in their struggle to defeat their own father.