Phew, it's hot! Under the Titan Hyperion's rule, the sun is burning even brighter than normal, and scorching everything in northern Greece—including the villagers! The Olympians are forced to play an un-fun game of Dodge the Sunbursts as Hyperion hurls giant fireballs that could fry them up! What's worse, it looks like a familiar foe, Cronus, is hot on Zeus, Poseidon, and Hades's trail. Armed with some clues, they set out to figure out why Hyperion has been making things so hot—and to rescue Hera, who is still missing. Battling the extreme heat and some fantastical and scary creatures sent by Cronus, the boys are off on another epic adventure, and Zeus is one step closer to discovering his destiny.