Big Hero 6 The Series - Season 3 Episode 17 -

Fred answers an email that says he won a prize. He follows it and it turns out to be a trap by Noodle Burger Boy and his family who create a robot duplicate of Fred and send him out in the hopes of finding Big Hero 6's base and blowing it up. The rest of the team comically fail to recognize that Fred is not Fred as the robots get no closer to their goal. Eventually, El Fuego attacks a bank and the team fight him. When Noodle Burger Boy, in robot Fred's body, is about to be destroyed, the other robots fight El Fuego. Fred manages to escape and joins up to out Noodle Fred. The robots escape as the team come together.