In this episode Ash and the others arrives at Brock's hometown, Pewter City. Brock's reaction was priceless when he saw his 'new' gym.
It's great to see Brock's Onix again, who has evolved into a Steelix. I liked seeing Golem, Geodude and Crobat as well.
Later, Team Rocket attacked the Pewter gym so they could steal the Pokemon from there.
This time, they have new Pokemon ....... Aggron and Charizard? That was unexpected.
I liked how Ash and Brock teamed up against Jessie and James and battled them. Despite having those powerful Pokemon, they got blasted off.
Later it turns out that those Pokemon were for Butch and Cassidy, so Delibird took the Pokeballs back from them.
Brock tried talking to his mother about the gym's new look, but sadly she ignored him. I guess she really wants to turn the gym into a water-type gym. -_-
Overall, this was an intersting episode, it's nice too see Brock's familiy again.