Ep. 21: The Science Ninja Team investigates a doctor's cyborg horse and confronts the mysterious leader X.

21

Nambu suspects a prize-winning horse is a cyborg and assigns the Science Ninja Team to protect its creator, Dr. Henjinman. However, the doctor disappears, leaving only a Galactor badge. He is taken to the enemy base, where he identifies the true face of Leader X and blackmails him into granting him a representative title. X’s subordinate, Katse, then orders the cyborg horses to attack a meadow and subsequently the city. The team infiltrates the base, witnessing X kill the doctor with light rays. Before dying, the doctor instructs the team to press buttons on the horses' backs, activating their self-destruct mechanisms. The team escapes as they detonate the base and destroy the robotic horses.