The Case of the K-9 Caper!.When Ash and his friends see a group of Growlithe training against a Policeman posing as a robber, Ash decides for him and Pikachu to do the same training to get the best they can be. However when Team Rocket comes to steal them, Officer Jenny, Ash and the gang's voice gets mixed up, causing the Growlithe to thinks that Team Rocket are the Officer Jenny as they uses their ears to do command.