Ash and his "friends" arrive in Jubilife city. A news crew comes up and asks if Ash will ever evolve pikach by stone or mechanical means. Ash says no. So then The news caster introduces them to the B- Buttton league. A club of people who do not evolve their pokemon. The leader had an uber Magikarp and Feebas. At the same time Team Rocket buys an evolving machine from the magikarp salesmen (they are too stupid to see that it is fake). So Ash and the gang go to the B-button league and Team Rocket shows up dressed up as the C-button league. Dawn's piplup battles the leader's magikarp and gets owned. Then Ash's pikachu gets owned by the magikarp. Then Team Rocket (club C button) petends to look at the Magikarp and Febbas and then they steal them. Then they run to a cabin. The twerps follow and then Team Rocket drops a cage on them and captures pikachu in a container. Then they do that crappy motto. and the B-button leader sees the R's and asks if they are from the R-button league. Team Rocket puts Magikarp in the evolving machine and it fails. They try again and it fails again. Then they use pikachu and it still fails. The insructions say in fine print " Machine may fail completly and always" So meowth presses a button on a Wii Remote and the machine turns in to a Starscream transformers rip-off. It breaks because the machine can only transform when an evolution is succsesful in the machine. So then the feebas and magikarp pwn Team Rocket and the day and pokemon are saved etc.
There, that's a quick summary of the episode.