Genki, playing in the woods, finds an adorable little dog injured in the leg. Unable to resist the cute creature, the boy takes the puppy to the laboratory to medicate it. But the little dog is a creation of the demon realm. At night the cub pulls an evil horn from his forehead to communicate with a pack of other hounds, subjugated by demons for their own shady purposes. The next day the little dog manages to open a hole in the laboratory's defenses, allowing the pack to penetrate the base and attack the Getta team. A second group of demon dogs manages to knock out the professor and steal valuable information and escape but the three heroes defeat their enemies. Going to the starting hangar, the pilots realize that only Bear can leave: among the stolen objects there were fundamental electronic components of Aquila and Giaguaro. Benkei, on a solitary mission, manages to recover the stolen goods just when yet another Deomon Robot appears. The Throw team, however, can now reassemble and form the Throw Robot to face the enemy that threatens the laboratory. The battle rages in front of the laboratory: the strength of the grounders is superior to the power of the demon enemy who is soon defeated. When everything seems to be over, the cub at the base becomes a horned demon ready to threaten the safety of Genki and the rest of those present. Fortunately, Benkei arrived in time and with a calibrated shot of a pistol pulls out the horn from the dog's forehead. A prompt veterinary intervention saves the little dog who can soon return to his owner's arms.