Steamboat Willies! : Season 10 Episode 39

As our Heroes continue toward Hearthome City and Dawn's next Pokémon Contest as well as Ash's next Gym battle, they discover a steamboat that travels along the same route they'll be traveling, which gives them an opportunity to do a little pleasure cruising! But when they decide to head into a small town for some supplies before the ship takes off, they leave all their Pokémon alone on the ship, and in their Pokémons' zeal to have a little fun, the ship accidentally starts down the river before our Heroes return - without captain or crew! Luckily, some quick thinking ...