Adam's Alien conspiracy theory is proven true when he comes into possession of an unearthly Crystal, discovers a parallel universe and meets an extraterrestrial agent named Zixx Phunkee Zee.
Adam and Griff steal the crystal base from Deeth in a misguided attempt to win Zixx's respect.
Adam suspects Zixx of diverting the city's water supply in order to obtain a prized item in the Keep.
When Uncle Murray is body-snatched by an evil alien, Zixx leaves Adam and Griff to rescue him on their own.
Adam discovers a secret about the crazy homeless man, Lew that might help him find the answer to his mother's disappearance.
Adam ends up in danger because he believes his long-lost mother is communicating with him.
When Zixx loses Flanngo in the Keep, it's up to Adam to find him and reunite the two aliens
Using an alien device from the Keep, Adam turns a school bully into a devoted zombie servant.
Griff falls in love with a new girl at school and things get sticky when Zixx and Adam decide they don't trust her.
Adam and Zixx Investigate the disappearance of Griff who is lost in the keep.
Their search for a previous crystal fragment brings Zixx and the boys into conflict with unscrupulous intergalactic traders.
Our heroes are suspicious when a remorseful Sarah tries to make amends by helping them get to Deeth's inventory
In their quest to reach the next level op the Keep, the fearless four must solve riddles of the three neuropods, battle Deeth and face-off against the vilest of all monsters.