Tonton Streaming Dino-Riders (1988) S1E2 - Revenge of the Rulons

Yungstar and Serena bring an injured Stegosaurus back to camp. He's one of the only dinosaurs that doesn't run away when an earthquake hits and severely cripples the Dino-Riders' defenses. Gunner and Tagg's attempt to corral their dinosaurs causes Llahd to be captured by Rasp. When the Rulons' ultimatum is delivered to Questar, he implements a plan that gives the Stegosaurus a chance to help save the day.