A new character is introduced--Porius. He is Ares' mentor, and although never seen in any of the Xena episodes...him and Xena have been good friends ever since he helped her when she was taken prisoner and was to be killed, but he saved her. Porius is immortal, he's like waaaaaaaaaaaayyyy older than Ares. When Porius is taken ill, Xena and Ares are forced to work together to help him. Takes place sometime before season five.