Garfield and Friends Season 3 Episode 48

Orson in Wonderland

This episode dicusses how cats came to Earth from another planet, and now pretend to be pets for humans. Cats are really using the humans as their slaves since they constantly feed and tend to cats every need. Dogs (which used to be intelligent,) began to suspect cats were up to something, and infiltrated the cat's secret lair. To keep their plan from being revealed, the cats used a special ray to drain them of their intelligence.