After weeks of being lost, Ash-tachi finally arrive at Vermilion City. Ash wants
to head straight to the gym to get a Thunderbadge, but Pikachu is tired, so they
go to the Pokémon Center first. In there, they see a lot of Pokémon who are
injured go past. They have been badly beaten by the gym leader, Surge, and his
Raichu. Pikachu is nervous about challenging, but Ash is insensitive and forces
it.
Once there, Surge and Raichu taunt Ash and Pikachu. When Pikachu sees his
opponent, he loses his fear and wants to fight, because it is being insulted for
being weak and not evolving. So they battle, and Pikachu loses badly. Pikachu is
disheartened, and Joy offers a Thunderstone. Ash asks if Pikachu wants to
evolve... and Pikachu is inspired by this offer, knowing it does NOT want to
evolve and will battle how it is. Team Rocket, who is peeking through the
hospital window, thinks Pikachu is very brave and admire it. ^_^.
After a cheer from Team Rocket, Pikachu and Ash go to the gym. Brock gave them a
hint; Raichu was evolved too soon and did not learn speed attacks, so Pikachu
might be able to beat it if it can be faster. After a strong and tough battle,
in which Raichu exhausts itself from using too much electric energy, Pikachu
manages to just win, and the two deserve their hard-won Thunderbadge.