Bill and Erica Smith's three children; William, Oscar and Carol Anne have been going on paranormal investigations with their parents since they were babies. Now that they are getting older, as William approaches being a preteen as he turns 10 in March 2028, he and his 7 year old brother; Oscar want to get into the "family business", and they start with Oscar's friend; Bradley Appleby who they think lives in a haunted house when Oscar goes to his house for a birthday-party. The boys then hatch a scheme to conduct their own investigation outside of any help from their paranormal investigator parents, but they find that they have a lot to learn before they can take over the "family business", from their parents.