Zog was the prince of an alien world known as Diggo. He was summoned to earth with a teleportation device by a strange reptilian scientist who lived on a remote island. The scientist had previously communicated with Zog by radio, and had taught him to speak English. The scientist apparently hoped that Zog and his subjects would aid him in conquering the Earth, but the scientist clearly miscalculated Zog's intentions. Upon finding himself on Earth, Zog immediately declared war on the planet, and death to all earthmen, only moments before vaporizing the poor scientist. About a half dozen of Zog's men made it to earth via the teleportation device before the hero known as The Shark knocked out each of the invaders and smashed the teleporter. Zog lost the battle, but with his ego wounded, he is bound to be even more ruthless in his bid for conquest. For he firmly believes, "the man with the mightiest arm shall conquer the universe."
Unfortunately for Zog, he is currently trapped alone on an island with a broken teleporter and a cabin full of notes as his only means of escape.