After millions of years, Olympus has fallen after a brutal war over the fate of humanity leaves the souls of four of the twelve Greek Olympians trapped inside the Underworld. As her last action, the goddess of wisdom Athena declares a prophecy that is Olympus's last hope. The prophecy states that there will come a time where the descendants of the Greek gods will have to make a choice that will either destroy the world or save it. Seventeen years later, teenage boy Alexander Drakos finds himself in the middle of a brewing war between Hades and the remaining gods which will determine the fate of the free world. With the threat of the ancient Titans returning lingering in the air, Alexander has to choose a side in the war before it's too late or suffer the consequences. With his friends' help, Alexander journeys through the Labyrinth to the Underworld to retrieve the lost souls of the gods but is met with a tough choice. Alexander and his friends have to decide for themselves whether to save Olympus or burn it to the ground.