God of War: Chains of Olympus
Five years into his servitude, Kratos witnesses the sun falling from the sky. He later comes across the abandoned chariot of Helios, the Sun God. Athena then tasks Kratos with finding Helios and defeating the God of Dreams, Morpheus, who has taken advantage of this event and sent the gods into a deep sleep.
Kratos’ journey takes him to the Underworld (this won’t be his first trip there), where he is reunited with his dead daughter, Calliope. Kratos also witnesses the freeing of the Titan Atlas, which is a bad thing since he literally carries the world on his shoulders. Eventually, Kratos is resigned to never seeing his daughter again. Then he chains Atlas to the roof of the Underworld and confronts Persephone, the Queen of the Underworld. On a side note, she orchestrated all these events and wants to destroy the world because the gods tricked her into marrying Hades, the God of the Underworld. And she used Calliope to placate Kratos and distract him from the apocalypse. Of course, this gets Kratos extra pissed, and he kills Persephone, a task that almost kills him. But it doesn’t.
