Dex may look like a handsome teenage boy, but he's really the Masked Rider - an alien superhero sent, along with his mischievous pet Ferbus, to protect the Earth from Count Dregon and his creatures of crime!
Lexion sends Denais on a mission to Earth. Then, he's kidnapped by Maggots, and turned into the evil Robo Rider. Can our hero rescue his friend?
Donais, having come to Earth to give Dex the added power of Masked Rider Super Gold, is now his friend's enemy, the Robo Rider. Can our hero battle his own friend, and reverse the power of the crystal?
The Stewarts' Grandma drops by for a visit. Meanwhile, Count Dregon sends his own visitors, who kidnap Grandma. Can our hero save Grandma from a pair of monsters?
The kids start a clean-up campaign in Leawood and it's just another day at the office for Count Dregon. Then, Nefaria supervises a little cleaning herself. This gives Cyclopter another idea for an evil monster. Can our hero stop the monster?
The Stewarts plan a day at the pool and Count Dregon plans a way to defeat the Masked Rider and rule the world. While the kids enjoy the water and Ferbus enjoys thehot dogs, the enemy begins his evil plan. Can our hero stop it?
It's Christmas time and a homesick Dex learns more about the holiday. Meanwhile, Count Dregon's crew plots to ruin things for everyone by having Nefaria sneak Maggots into the Stewart house to kidnap Santa Claus. Can Dex's Masked Rider powers save Christmas?
