Timothy and the other children challenge Bucky to a Dunsparce obstacle race. Aware that Bucky doesn’t have a Dunsparce, they allow him to use his Caterpie. The Pokémon are all standing at the starting line, though Caterpie is shown to be noticeably smaller than its competition. The race starts, and all of the kids cheer on their own Pokémon. Caterpie lags significantly behind all the Dunsparce, despite putting in its best efforts. Team Rocket watches the Dunsparce race from behind the bushes. Meowth and James note that there are so many Dunsparce, but Jessie reminds them not to get distracted, since they have to focus on getting Pikachu. Her teammates agree and they duck back into the bushes to complete the finishing touches for their latest plot. Meanwhile, Caterpie struggles to climb up a bunch of steps, while Bucky motivates it to keep going. Caterpie sees a Dunsparce right behind it, and Dunsparce’s owner tells it to fly right over Caterpie. It does so, easily getting to the top of the steps and sliding down the slide. The boy cheers and turns to Bucky, telling him that Caterpie is already one lap behind. Bucky keeps telling Caterpie to not give up. However, Caterpie loses its balance and falls down the steps, knocking itself out. Bucky decides that Caterpie needs to rest and leaves the race, saying farewell to his friends.
(Source: Bulbapedia)