The son of Hippolyta and Ares, Thrax eventually sided with his father as the two attempted to kill off the Amazons in a bloody and epic battle. Unfortunately for Thrax, when he came up against his mother, he quickly met his end. With a quick wave of her sword, Hippolyta took the head of her son clean off of it's shoulders, leaving his father to grieve for his son.
Thrax would eventually serve as a slave to Hades in the underworld. After a second bid to wipe out the Amazons (and failing), Ares would join his son as a slave for Hades.