Everything is peaceful in Smurf Village … until Gargamel tries to rule the world. He creates Smurf-like creatures called the Naughties to help him harness the power of the Smurfs, but only true-blue Smurfs have magical Smurf essence. When he finds out that Smurfette knows a secret spell that can turn the Naughties into true-blue Smurfs, he smurfnaps her and locks her up in Paris. Papa Smurf and the rest of the Smurfs head to Paris … but can they rescue Smurfette before she reveals the secret formula?