While on their way to the first Gym, Ash and Iris realize that they are being followed by the Oshawott from Professor Juniper’s lab. They find out it wants to be captured by Ash because he called it very cute. Professor Juniper sends Ash Oshawott’s Poké Ball, but Oshawott disappears before he can be recaptured. They soon come across a boy named Dan, whose father owns a resort with a sand spa that has been disrupted by a group of Sandile, led by one of them that wears sunglasses. After coming across Oshawott and Team Rocket again, Ash, Iris, and Dan discover that the Sandile were trying to get help for a group of Pidove, Deerling, and Patrat from a hot spring with the hot flooding. When it makes a hot river and traps the other Pokémon on a small island, the Sandile form a bridge to save them, but Ash is trapped on the island when their grip fails. When another flood comes behind Ash, Oshawott manages to save him with a Water Gun. However after using the move, Oshawott almost falls into the hot river, and Ash uses the opportunity to recapture Oshawott.