Zack and his robot sidekick GARG race the infamous Captain Menace and his trio of evil minions--Gormag the Grievous, Noot the Tall and Terrible, and GARG's nemesis, the gigantic robot Cantobor--as they scale the Colossal Cliffs of Pantera in search of the lost treasure of Zandor. Will Zack and GARG find the treasure before Captain Menace and his minions? It all depends on your imagination.