The Misfits Club tells the story of five kids in modern-day Ireland. Brian, Hannah, and the twins, Sam and Chris, created the Misfits Club when they were eight in order to solve mysteries. Now, it’s time for the club to disband, but they’ve still never solved anything. The club members persuade the new girl, Amelia, to join as they give it one last go over the summer holidays. They convince her to investigate a spooky old house and are shocked when they find a real mystery inside.