Double-Time Battle Training!
Knowing that the next contest is going to be a double performance, Dawn begins training Mamoswine and Cyndaquil. Zoey arrives and decides to help Dawn with her training.
Aired 10/12/2009EP 155 - Double-Time Battle Training!

2006
Pokémon the Series: Diamond and Pearl
After defeating Brandon and declining the offer to be a Frontier Brain, Ash sets off to travel through the far away land of Sinnoh. Once he gets there, he meets up with Hikari, a local trainer from the region, and they decide to travel together.