High atop Mount Olympus, dawn breaks on a new academic term. Normalcy has returned to campus following a harrowing expedition into The Underworld to rescue kidnapped students by Zeus and his fellow Olympians. Now, as they prepare to testify in The High Court, Hyperion will be tried for the attack on Crete and death of Anytos. Kronos will stand trial for the murder of Mount Olympus Prep’s Headmaster Ouranos.
As the trials draw near, Mount Olympus Prep students and faculty are besieged repeatedly by a race of gargantuan stone and earth giants. Under heavy assault, the Olympians are forced to flee to the volcanic island of Limnos to regroup.
Meanwhile, a toxic poison Zeus has carried with him since a prior fight with a dragoness, creeps toward his brain.
In a race against time and beasts, Zeus and his friends must find a way to survive not only the toxin ravaging Zeus’ body, but also the giants who grow stronger after every attack, and somehow make it to the The High Court alive.