Xena: Warrior Princess (1995)

Season 5: Episode 12

Xena and Gabrielle team up with Hercules, when Zeus declares that Xena's unborn child must die so that the prophecy will not be fulfilled. Meanwhile, Xena decides to travel to the underworld to retrieve Hade's helmet of invisiblity to allow her and her baby to hide, and runs into her son, Solan who has chosen to live in Tarturus.