Ep. 8: The Sinnoh Iceberg Race!!

8

Ash and Goh meet a Piplup from the Sinnoh region that has run (actually swam) away from its owner Lauren. Travelling to Sinnoh to return it, they learn that Piplup ran away because of its jealousy about Lauren's Croagunk, who's competing with Piplup for her attention. The two Pokémon decide to settle their quarrel by competing in the Pokémon Iceberg Race, which Ash and Goh decide to enter as well, while Team Rocket plans to sabotage the race by capturing all the Pokémon that have entered. (Source: Wikipedia)