Neecy and Nay Nay's best friends are coming over for a mystery sleepover! They'll play detective games, have a disguise contest, go on a mystery scavenger hunt, and even watch episodes of their favorite TV show, Snoop Diggity Detective. But when they discover their neighbor Jamila's foster parents, Mr. and Mrs. Johnson, acting suspicious, they begin to think they have a real life mystery on their hands! Can the twins complete the mystery scavenger hunt and solve Jamila's mystery before their friend finds out?