While the gang enjoys a lunch, they are interrupted by a Roggenrola 
landing on their lunch table. Ash decides he wants to capture it, for 
the energy and spunk it has, but it manages to defeat both Oshawott and 
Tepig. Cilan notices a strange suction cup on the back of Roggenrola, 
which is knocked off in the battle. At the Pokémon Center, Ash has 
Oshawott and Tepig taken care of when a man named Mr. Garrason talks to 
Nurse Joy and informs her that the water lines seems normal, and the 
cause is elsewhere. Nurse Joy informs Ash and friends that the water 
supply has been strange since morning, and tells them that the water 
supply comes from a cave where Roggenrola. They say they saw a 
Roggenrola earlier that day, but Nurse Joy tells them that they rarely 
come out of the caves. Cilan says that the Roggenrola was attempting to 
tell them something, and also remembers the strange object on its back. 
Mr. Garrason says he will go to the caves to look, and Ash and his 
friends volunteer to follow. Elsewhere, the same Roggenrola warns 
several wild Pokémon about something, and inside a cave, a strange 
device driven by Team Rocket chases after several Roggenrola. Ash, Iris,
 Cilan, and Mr. Garrason enter the cave which is supposed to deliver 
water to the Pokémon Center to see why the Roggenrola are acting strange
 when they come across Team Rocket who capture the Roggenrola the gang 
encountered earlier to fill up the device. Ash manages to save that 
Roggenrola from Team Rocket, who exit the cave, but smash the cave 
walls, causing a cave-in. A rock falls towards Ash, but Roggenrola saves
 him by using Flash Cannon. As Team Rocket exits the cave, they fire an 
energy blast from the Roggenrola Cannon to cause a cave in at the 
entrance. Pansage and Excadrill use Dig to get the gang outside, where 
they chase down Team Rocket who try to use the Roggenrola Cannon to 
escape once more. They fire the cannon and Roggenrola intercepts the 
blast with Flash Cannon. Team Rocket fires a second time, however, the 
device backfires, due to the Roggenrola forcing the energy into reverse 
causing the machine to break down. The Roggenrola are freed, and with 
combined attacks from all the Roggenrola, Pikachu, and Tepig, they 
defeat Team Rocket's Pokémon, and destroy the machine, forcing Team 
Rocket to flee on jetpacks. At the Pokémon Center, Nurse Joy checks on 
all of the Roggenrola and Tepig, revealing that they are healthy, and 
the one Roggenrola that Ash first saved reveals it wanted to travel with
 Ash from the moment they met. This time, Tepig manages to defeat 
Roggenrola, allowing Ash to capture his eighth Pokémon in the Unova 
Region. 
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