What did Odysseus have to do to get his men back to the ships?

Odysseus had to confront the enchantress Circe, who had turned his men into swine. After receiving guidance from Hermes, he used a magical herb called moly to protect himself from her spells. Once he gained her trust, he persuaded her to transform his men back and secure safe passage back to their ships. Ultimately, they were able to leave after spending a year with Circe as her guests.