It is the thirty-fourth episode in the series.
After Grim gets Hildy an adorable white cat, rather than a witchy black cat like she wants, Hildy tries to get rid of it but the cat keeps coming back.
The episode opens with Hildy frowning at the fact that her rival, Snazzy Shazam, has a black cat. Hildy wants Grim to find one for her. But Grim later comes home with a white cat because the shop doesn't have any. Still, Hildy orders him to go out again and find one; after he leaves, Hildy attempts to get rid of the white cat by sending it out of their manor, but the cat instantly reappears inside and it wants to stay. Even sending the cat to the top of Mount Jollymanjaro or on a rocket ship to the Moon isn't stopping the white cat—it keeps coming back! Suddenly, six more white cats arrive at the manor. Grim arrives home with cat food instead of a black cat and told Hildy that he had purchased all seven.
Hildy still doesn't want the seven cats, so Grim dropped them at the 7D's. Dopey finds them at the front door, and after recounting the past events of bringing animals into the cottage, Dopey hides them in the basement and leaves. But the white cats begin to roam freely around the cottage, which includes eating cheese belonging to a suspecting Grumpy. The rest of the 7D then heard the commotion and learned that Dopey had brought the kittens inside.
Meanwhile, Grim finally brought Hildy a black cat and then she gloats about it to Snazzy. But the black cat Hildy owns was once belonged to Snazzy; she no longer wants it because white cats are now the in-thing to have. She then told Hildy that the seven white cats are actually the mystical magical cats of Catalina, and whoever had recently purchased them should consider themselves lucky, making Hildy very disappointed. The episode ends with the 7D in awe of the magical cats and enjoying their abilities.