The series follows the daily life of a young yellow monster named Henry Hugglemonster and his family, who live in a village called Roarsville. Henry’s best friends are Denzel Dugglemonster and Gertie Growlerstein. All the monsters from Roarsville are friendly and fun-loving. Henry’s experiences often lead to problems, so he must use his problem-solving skills to find a solution to the problems. Every day brings a new opportunity to learn valuable lessons.