The Robot Circus

S1 E3: Toby is deceived by the master into joining a robot circus in America. Dr. Elephant, who is scheduled to be appointed as Minister of Science to replace the absent Dr. Boynton, sees Toby fail in his job as a stagehand. Toby performs an electrode swing to substitute for a broken star robot and stops robot animals from going out of control. Cathy, a member of the circus, tricks the master into letting Toby go. Dr. Elephant brings Toby back to Japan with him and names him Astro Boy.