66. Touch-and-go situation, Bakuongue vs. Grovyle!

 Our heroes who have headed to Petalburg City were taking their breakfast in the forest. They were having a good time, but Ash's treecko's acting is strange. Though Ash tried to talk with it, it has no answer.
At that time, screaming and rage dogohmu was up, and some boy was after it. His name is Guy and he's that dogohme's trainer. Guy said that suddenly it has started to rage without taking Guy's order lately. So, he hasn't be able to recognize that reason.
Ash guessed stress had been suffered to his doghomu, then Ash and Guy would be pokemon battle for burnished its stress.
Then, suddenly Ash's treecko showed fighting splits and it asked Ash that it would want to be in the battle. Then, Ash decided to use treecko in that battle...

67. Dancing Battle! Runbappa!!

 Ash and his friends are getting close to Petalburg City. Then, Ash introduced Grovyle that was evolved from treecho to his other pokemon. They welcomed Grovyle as a teammate, but Heigani seems to be displeased with that.
At that time, Bancho who has a mustache was up from groves with his runbappa. Bancho asked Ash the pokemon battle to bet lunch. Ash thought it's a good training for gym battle in Tohka City and was accepted his challenge.
Ash tried to use Grovyle for this battle, but Heigani began to assert it should be chosen.

68. Daddy is an idol! Fake gym leader!!

 Ash's party was arrived at North-Petalburg City where was the next of Petalburg City. Then, they visited Pokemon Centre, the town's peoples were exited, because May and Masato are children of the great gym leader Senri, and so they are also popular.
As Team Rocket saw that scene and thought of some plan.
Then, May had to show her pokemon's techniques in front of a lot of people. And Ash was asked the pokemon battle from some trainer, but...

69. Crisis of Petalburg City gym! May's family is history?!

Ash came back Peterburg City gym again for making rematch with Senri and earn the 5th badge. And this returning was a long time since May and Max left from their home.
They were looking forward to meeting their parents, but their father Senri wasn't at home. May was wondering her mother Mitsuko wasn't usual. She figures out Senri seemed to have a secret love affair with Nurse Joy. What was happened between Senri and Mitsuko in spite of loving each other?
Meanwhile the trio of Team Rocket were sneaking into the huge green house of Peterburg City gym for snatching pokemon. 

70. The battle in Petalburg City gym for 5th gym badge!

 Finally the pokemon battle was about to begin in Peterburg City gym. Ash's opponent is Senri who is the gym leader and also father of May and Max. Ash stood on the battle field with full of fight.
At first, Ash tried to take the initiative with Pikachu. Then Senri sent Namakero as Pikachu's opponent. Namakero is lying down on the field without interesting. However, it dodged Pikachu's attacks one by one. Ash can't make his pace by Senri's smart battle way...