Pokemon: Season 11, Episode 21

11 - 21: Crossing Paths

Team Rocket arrives by a lakeside where Jessie's Dustox catches site of a Shiny Dustox. They follow it to a lake where they meet the Shiny Dustox's trainer. He tells them that when there is a full moon, Dustox gather at the lake and fly over Mt. Coronet together, and Jessie's Dustox becomes close with the other one.