BW034 - Bulbapedia, the community-driven Pokémon encyclopedia
Ash and friends are enjoying a picnic when they are menaced by an unusually eratic Roggenrola with a strange device afixed to its back. What does this have to do with the local Pokemon Center recently losing its water supply? And how are Team Rocket connected?
(To dicuss this episode in an environment free of all spoilers from episodes which have aired in Japan, please check out the discussion thread in the Spoiler-Free Zone.)