Kevin is stuck in a boring holiday park with his family, when he discovers a video-tape from an obscure 1980s TV show. When he plays the video he accidentally unleashes a strange creature known as the Pooka into the world. The Pooka causes chaos and Kevin gets the blame. His family don’t believe him when he tells them it’s the creature’s fault.

Follow nine-year-old zombie girl Mortina and her "alive-alive" friends Nora and Leo, as well as her loyal dog Tragedy and cousin Dilbert. Set in the delightfully decaying Crumbling Manor, the self-proclaimed Mystery Squad solves strange and comical cases such as recovering books hidden by a mischievous tongue or searching for BroccoGloomy, a weird vegetable that makes you sprout dragonfly wings.