Ep. 40: The group helps Mikey protect his Eevee from forced evolution by his brothers.
Aired on April 16, 1998

40
While traveling through the woods, the group encounters an Eevee that was apparently abandoned near a tree. They take it to its address in Stone Town and find it belongs to a little boy named Mikey (タイチ, Taichi). His three brothers are pressuring him into evolving his Eevee into one of three forms—Jolteon, Vaporeon, or Flareon—at an Evolution Party, where everyone uses Evolution Stones to evolve their Pokémon. However, the Evolution Party is disrupted by Team Rocket, and Mikey manages to use Eevee on its own to show his brothers that he does not need to evolve his beloved Eevee.
Episodes
- Ep. 36 · The group faces a bike gang and Team Rocket while crossing a stormy bridge with a delivery.
- Ep. 37 · Ash and friends visit a mansion where Duplica's Ditto struggles to change its face while Team Rocket plots to steal it.
- Ep. 38 · Ash and friends investigate a malfunctioning transfer machine at the Pokémon Center.
- Ep. 39 · Ash considers leaving Pikachu with its own kind in the forest
- Ep. 40 · The group helps Mikey protect his Eevee from forced evolution by his brothers.
- Ep. 41 · Ash and friends resolve a town's water crisis caused by a Snorlax blocking the source.
- Ep. 42 · Ash and friends face rival Gyms in Dark City
- Ep. 43 · Ash and friends encounter a struggling magician whose hypnotic Exeggutor scheme threatens a carnival.
- Ep. 44 · Ash and friends help Cassandra train her Paras to evolve while Charmeleon disobeys