Class of the Titans

Cold Day In Hades (2x8)

Air date: Nov 04, 2007

Persephone has gone missing, and as a result, the entire world (and underworld) is experiencing a sudden second winter. Atlanta and Neil try to track down Demeter, Persephone's mother, to convince her to warm the earth up again, while the rest of the team goes to the Underworld to try and find Persephone.