Truly's parents are arguing all the time, so they've dropped her off with her aunt and uncle. Her cousin Kaz has a big imagination but he's not the best at making friends. Maximo Skulldigg gets bullied by his older brother-and now he has to conquer Kaz and Truly's home planet. It's a good thing Kaz and Truly just uncovered a family secret. After the cousins find a hideout full of strange treasures near Kaz's house, they slip on wristbands that summon a space knight named Trinn Cyclo. Soon, he may be Earth's only hope!