"Isis" starred Joanna Cameron as Andrea Thomas, a science teacher at Larkspur High School who found an ancient mystical gold amulet, the "Tutmose amulet," on an archeological dig in Egypt. The Isiac amulet, which resembled the headdress of Hathor, had originally belonged to Queen Hatshepsut, an Ancient Egyptian pharaoh. The amulet gave the wearer (specifically, Hatshepsut and her descendants, of which Andrea was one) "the powers of the animals and the elements," which would be bestowed upon such wearer by the goddess Isis whenever it was exposed and her name invoked. Whenever Isis was needed, Andrea would reveal the Isiac amulet (which she wore as an everyday necklace) and recite an incantation—"Oh mighty Isis"—transforming her into the goddess/super-heroine.