While at a visit to Granny's farm, Betty is called away on a mission and discovers that the villain—a woman who has the power to transform herself into a black hole—is actually her own maternal great aunt! She's back to get revenge on Betty's Grandma Beatrixo ( a former, retired Galactic Guardian) for imprisoning her in the first place, and nothing can stop her. It's up to Granny to save the day in a very unusual way./Dr. Cerebral has obtained a new robot that can convert organic lifeforms into robots that he can control, believing that they are superior and cleaner. Betty has to stop him before he turns the entire galaxy into robots.