Eleven-year-old Max receives a baseball cap that turns out to be the key to a series of teleport ""portals"" left by the ancient Lemurians, which as the foretold ""Mighty One"" he must use to defeat the evil Skull Master.

Max, Virgil, and Norman must prevent the earth from being invaded by brain sucking space aliens. The only way to do this is for Max to make amends with Ernie, his nerdy loudmouth lab partner from school. Ernie is the only one that can crack the computer codes on the aliens' disks

When Max brings an ancient necklace back from Egypt and gives it to a girl named Jiffie, it turns out to have a curse that causes her to be kidnapped for sacrifice to a snake god.

While vacationing with his mom in Turkey, Max is accused of stealing a baseball cap and gets the cosmic cap taken away from him and is imprisoned. Norman attempts to free Max from the prison, but they encounter and must do battle against a giant Cyclops. Meanwhile, Virgil and Max's mom search desperately for the missing cap.

Skull Master tricks a sorcerer by the name of Ravendark who is cursed within a cave to reawaken and release an evil dormant dragon from the earth saying that this will finally give him freedom. What Ravendark doesn't know is that he is not freeing himself by releasing the dragon that will tear the earth apart, but he is freeing Skull Master. Max, Virgil, and Norman fail in preventing the dragon from waking up. Now they must convince Ravendark to put it back to sleep.