Eons ago, the Ancient Ones won the war against the Jackals and managed to incarcerate them in the depths of our planet. Humankind and all life on Earth arose and evolved on the surface of a massive inner prison. Now, the Primordial Jackals are awakening one by one, and only Mega stands in their way to re-emerge from the darkness. After the success of the first miniseries, Salvador Sanz delivers a new chapter in the epic Mega saga.