On the ferry ride to Twinleaf Town, our heroes discuss their plans for the future. Realizing that they will soon be going their separate ways, Dawn invites them over to her house first, and everyone happily agrees. Also on the way, the group meets a Pokémon Nursery teacher trainee named Normajean, who is taking care of a group of young, cute Pokémon.Meanwhile, Team Rocket is hot on the trail of our heroes, following the ferry in their submarine. But they get off course when James spies his kind of treasure—a rare bottle cap—amidst a group of Tentacruel. They snag the bottle cap, and the very unhappy Tentacruel chase them right out of the water and onto the ferry, where they collide with our heroes! Ash and Pikachu try to drive the angry Tentacruel off, but Normajean’s young Pokémon are poisoned in the attack.Springing into action, Brock attempts to heal the sick and injured Pokémon. The ferry’s passengers help him find some medicine, but not enough to cure everyone. Brock gets advice via video monitor from Nurse Joy, who is on her way by boat. She advises Brock to be persistent and do whatever he can to alleviate the suffering of the young Pokémon. Sure enough, Brock’s creativity and talent carry him through, and by the time Nurse Joy arrives, the Pokémon are as healthy as ever…and Brock’s Happiny, after helping him care for his patients, has evolved into Chansey!
- A Day in the Limelight: For Brock's Happiny. She evolves into a Chansey in order to help the sick baby Pokemon.
- Leaning on the Fourth Wall: When James leads the Magikarp submarine to the treasure.James: Bingo! My favorite bling!Jessie: Is it gold? Silver? Platinum?Meowth: Rubies or sapphires? Although diamonds and pearls rock too.James: It's not quite that black and white.
- Rule of Symbolism: Happiny's evolution into Chansey is a fairly obvious metaphor for Brock's transition to becoming an aspiring Pokémon Doctor. It's that much more appropriate as Chansey was Nurse Joy's Signature Mon for the first four generations.
- Shipper on Deck: Dawn points out that Brock becoming a doctor would allow him to spend plenty of time with Nurse Joy, which needless to say is a very compelling argument for him.
