What is the problem for captain underpaints and the attack of the talking toilets?

In "Captain Underpants and the Attack of the Talking Toilets," the main problem arises when George and Harold accidentally unleash a horde of malevolent, sentient toilets that threaten their school and the town. These talking toilets, created by a villainous character, cause chaos and mayhem, forcing Captain Underpants to confront this bizarre yet humorous threat. The story combines elements of friendship, creativity, and the importance of standing up against absurd challenges. Ultimately, the boys must work together to save the day and restore order.