Fight for the Meteorite
The gang rushes to the cable car headed up Mt. Chimney, boarding it just in time along with a disguised Team Rocket. As the car travels upward, they spy both a red helicopter and a gray helicopter.
Professor Cosmo is on the mountain, searching for a recently-fallen meteorite. Team Magma and Team Aqua arrive, both after the meteorite. Team Aqua hijacks the cable car system and causes the cars to stop. Team Rocket reveals their identity, but the kids are too busy trying to escape the cable car to care. Ash manages to get out to the mountain.
Teams Magma and Aqua fight, with Team Magma's Dark-type Pokémon overpowering Team Aqua's Water-type roster. Back in the cable car, the kids enjoy lunch with Team Rocket.
Ash meets Professor Cosmo, but Team Magma gets the meteorite. They place the meteorite inside a machine designed to activate the volcano. Professor Cosmo distracts Team Magma while Ash tries to steal the meteorite back. Pikachu ends up shocking both Team Magma and the machine, causing an overload. Professor Cosmo pushes the machine into the lava, destroying it (and the meteorite).
Team Magma departs with the knowledge that their machine worked. Team Aqua leaves, pleased that Team Magma did not succeed. Team Rocket falls down Mt. Chimney. Ash and his friends get directions from Professor Cosmo and head for Lavaridge Town.