When Maudie Miller (Anna Cooke), 10, arrives at a new school, the other students immediately realize how clever she is when she solves a mystery that not even the teachers could figure out.

Tech-savvy fellow student Ezra Banks (Aston Droomer) decides they should form a detective agency to help locals solve their mysteries. Their friends, talkative and empathetic Ava Andrikides (Abby Bergman), and sports fanatic Kyle Kilmson (Jamil Smyth-Secka), complete the group as the pint-d sleuths take on a variety of puzzling cases.