When rumors of a monster in Lake San Saurio arise, the team investigates and encounters Vic Dyson and his goons hunting for an aquatic dino. They are soon ambushed by a Techno-plesiosaur, which unleashes a powerful water attack. The poachers flee, leaving Dinoster to battle the beast until Trina arrives to help tame it. Afterward, she discovers the Technosaur's armor is unique.
