Boats are being attacked in Porta Vista and Ash & co discover that the Tentacool are responsible. For saving people from disaster, a girl called Nastina thanks them and offers them a million dollars and dinner if they will help to wipe out the Tentacool. Ash and Brock are keen to accept but Misty is upset at the thought of hurting the Tentacool. It seems that Nastina's invitation has been extended to the rest of the town and a deal is struck with Team Rocket. Success is never their strong point and of course they fail but not without managed to enlarge a Tentacruel which begins an attack on the city. Ash and Misty manage to stop the Tentacruel and he is about to leave when Nastina launches an attack of her own. Not without consequences and the only thing destroyed in the end is her cousin's half built cottage!
A young boy named Ash Ketchum embarks on a journey to become a "Pokemon Master" with his first Pokemon, Pikachu. Joining him on his travels are Brock, a girl-obsessed Rock Pokemon Trainer, and Misty, a tomboyish Water Pokemon Trainer who may have a crush on him. Ash and Co. end up traveling through various regions, including Kanto, the Orange Islands, and Johto, and then enter the Pokemon League competitions there.
Along the way, they run into many confrontations with Jessie, James, and Meowth, a trio of Pokemon thieves who are apart of an evil organization called "Team Rocket". But every time Team Rocket try to do their evil deeds, they fail thanks to Ash and his Pokemon.