Young Max receives a very special cap in the mail, and learns that he is the foretold "Mighty One" whom it is said is destined to defeat the ultimate evil of the Skullmaster.
When Max brings an ancient necklace back from Egypt and gives it to a girl named Jiffy, an evil mummy sorcerer named Venom has her kidnapped to sacrifice to his snake god.
While vacationing with his mom in Turkey, Max is accused of stealing and is imprisoned. However, the jail is no ordinary one, and is built upon the ancient lair of the cyclops and its savage guardian.
When Spike, an ancient savage warrior who murdered Norman's father is revived, Norman struggles with his fear and doubt as he tries to find a way to defeat his old enemy and finally lay his father's spirit to rest.
Max, Virgil, Norman and a rich Texan go under the sea in a submarine to battle a giant squid that is destroying ships and threatening the existence of an undiscovered race of squid people.
Evil aliens who can only survive in freezing temperatures take over an Arctic research facility and assume the identity of the researchers in order to carry out devious plans to create a new ice age.
Max and co travel throughout the world, recruiting various heroes to join them in their crusade to destroy Skullmaster and the Crystal of Souls. Max also battles his own terror at the prospect of facing the deadly Skullmaster once more.
