Season 4, Episode 39 - "Control Freak!"
30 March, 2002
On the way to Olivine City, Brock's Golbat begins to act strangely and flies to a archeological dig site. A girl named Tierra is there using ultrasonic waves to help dig up a special artifact, an ancient gold mask ans scepter that once belonged to a queen. Together they have the power to control any Pokémon. Team Rocket hears this and plans to steal it.
