Commander Harlin is an alien entrepreneur. He has an assistant with him who loves to eat chicken. Commander Harlin and his assistant are green aliens resembling rats who wear purple outfits.
Commander Harlin is the founder and owner of a popular fried chicken fast food chain called Neptunian Nuclear Chicken. However, he was upset that he could not open many more restaurants because he did not have enough chickens. He designs a machine that can turn any human and animal into a chicken.
Upon using it on the city (where it works on everyone except Garfield, because he had eaten a large amount of lasagna), a giant spaceship that resembles an egg came to the city, where Commander Harlin lured chickens into his spaceship using corn. Garfield follows into the ship and manages to defeat Harlin. Finally, Harlin turned everyone back to normal by zapping them again, and Harlin and his assistant never returned.