How does Odysseus rescue his men?

Odysseus rescues his men from the enchantress Circe by using a magical herb called moly, given to him by Hermes. This herb protects him from Circe's witchcraft, allowing him to confront her and ultimately persuade her to release his men, who had been turned into pigs. After convincing Circe to revert his crew to their human forms, Odysseus and his men stay with her for a year before continuing their journey home.