Pokémon Season 5 Episode 13

Ash and friends do their best to free the captured Lugia from Team Rocket, but are eventually overwhelmed by a new technology that emotionally manipulates Pokemon, amplifying their rage and enhancing the power of their attacks. This heightened power enables Butch and Cassidy to not only capture the parent Lugia, but to take captive Ash and friends as well. A Team Rocket researcher insists that true power lies in fury, but Ash hopes to prove that trust between man and Pokemon holds the key to a greater power still, and to free himself and his friends in the process.