Plot hole: Xena is posing as a guard outside of Caesar's office. She knocks out the 2nd guard and throws him on the ground. Moments later, about 10 guards walk by, but no one notices the passed-out guard on the floor. (00:14:40)
Looking Death in the Eye - S5-E19
Plot hole: Ares stops Xena from 'committing suicide' by sword on the beach after the chariot crash, before she drinks 'poison'. How did Xena know that Ares would stop her from 'killing herself,' thereby allowing her to drink the 'poison' when she obviously hadn't revealed any of her plan to him and she didn't believe that he was in love with her? (00:32:40)