12-year-old Griffin Campbell and his family move to the small town of Sulphur Springs and take ownership of an abandoned hotel rumored to be haunted by the ghost of a girl who disappeared decades ago. Griffin befriends Harper, a bright-eyed, mystery-obsessed classmate and together, they uncover a secret portal that allows them to travel back in time. In the past, they’ll attempt to uncover the key to solving this unsolved mystery, a mystery that affects everyone close to them.

Before their eventual team-up with Scooby and the gang, bright and optimistic Daphne and whip-smart and analytical Velma are both mystery-solving teens who are best friends but have only met online - until now. Daphne has just transferred to Velma's school, Ridge Valley High, an incredible tech-savvy institute with all the latest gadgets provided by the school's benefactor, tech billionaire Tobias Bloom. And while competition is fierce among the students for a coveted internship at Bloom Innovative, Daphne and Velma dig beyond all the gadgets and tech to investigate what is causing some of the brightest students in school to disappear - only to emerge again in a zombie-fied state.

After moving to a small town, Zach Cooper finds a silver lining when he meets next door neighbor Hannah, the daughter of bestselling Goosebumps series author R.L. Stine. When Zach unintentionally unleashes real monsters from their manuscripts and they begin to terrorize the town, it’s suddenly up to Stine, Zach and Hannah to get all of them back in the books where they belong.