After everyone had lunch, Nils, Tana, Rex, Ren, Firenze, Forrest, Snana, Rocio and Nabila all went back to the Gym's battle field for Nils' Gym Battle with Forrest. Once at the battlefield, Nils and Forrest each went to either side of the battlefield while Rocio stood on the referee platform and everyone else sat at the stand.

"The Gym Battle between Forrest, the Gym Leader, and Nils, the challenger will now begin," said Rocio, "Each trainer will use only three Pokemon and the battle will be over when all three of a trainer's Pokemon are unable to battle." "Also, only the challenger can substitute Pokemon."

"Go Probopass," said Forrest and Probopass was sent out.

"Go Machamp," said Nils and Machamp was sent out, "Use Dynamic Punch," and Machamp used the selected attack which missed Probopass.

"Flash Cannon," said Forrest and Probopass started to use the move that was chosen.

"Use Revenge," said Nils and Machamp let the Flash Cannon hit him and then used Revenge on Probopass which did a lot of damage.

"Zap Cannon," said Forrest and Probopass used the move of choice which hit Machamp who took damage and became paralyzed.

"Try Dynamic Punch," said Nils but the paralysis prevented Machamp from using the chosen move.

"Dazzling Gleam," said Forrest and Probopass attacked Machamp with the attack that was selected which was super effective and did even more damage because the earlier Flash Cannon lowered Machamp's special defense.

"Try Dynamic Punch again," said Nils and this time, Machamp used Dynamic Punch which hit Probopass who took damage and became confused.

"Use Dazzling Gleam," said Forrest but the confusion prevented Probopass from attacking.

"Low Sweep," said Nils and Machamp used the selected move which gave Probopass even more damage.

"Dazzling Gleam," said Forrest who became worried and Probopass managed to use Dazzling Gleam which knocked out Machamp.

"Machamp is unable to battle," said Rocio, "Probopass wins."

"You were great Machamp," said Nils as he returned Machamp, "Go Venusaur and Venusaur was sent out. "Use Energy Ball," and Venusaur attacked Probopass with the selected move which lowered Probopass' special defense.

"Use Stone Edge," said Forrest but Probopass was unable to attack because it was still confused from Dynamic Punch.

"Energy Ball again," said Nils and Venusaur used the chosen move which knocked out Probopass.

"Probopass is unable to battle," said Rocio, "Venusaur wins.

"You were awesome Probopass," said Forrest as he returned his Probopass, "Go Aerodactyl," and Aerodactyl was sent out.

"Return Venusaur," said Nils who returned Venusaur because he had a better Idea, "Go Froslass," and Froslass was sent out.

"Why would Nils use an Ice Type against Dad's Rock Types," asked Nabila.

"Because Ice Types have the type advantage against Flying Types, like Aerodactyl, and Ground Types, like Rhyperior," answered Firenze.

"Also," said Ren, "Froslass knows a very useful move."

"Use Attract," said Nils and Froslass used Attract on Aerodactyl which worked.

"Use Rockslide," said Forrest but Aerodactyl wasn't able to use the selected move.

"Ice Beam," said Nils and Froslass used the chosen move which gave Aerodactyl a lot of damage.

"Use Rockslide Aerodactyl you can do it," said Forrest but Aerodactyl still couldn't use Rockslide.

"Ice Fang," said Nils and Froslass used Ice Fang on Aerodactyl who took damage and flinched. "Now Ice Beam," and Froslass used Ice Beam which gave Aerodactyl even more damage.

"Rockslide," said Forrest and this time, Aerodactyl hit Froslass with the chosen attack which gave Froslass super effective damage.

"Ice Fang," said Nils and Froslass used the move that was selected which knocked out Aerodactyl.

"Aerodactyl is unable to battle," said Rocio, "Froslass wins."

"You're doing well Nils," said Forrest as he returned his Aerodactyl, "But you still have to defeat the best, go Rhyperior," and Rhyperior was sent out.

"Use Attract," said Nils and Froslass started to use the move of choice.

"Dodge with Dig," said Forrest and Rhyperior used the chosen attack which made Attract miss and Froslass take damage.

"Use Ice Fang," said Nils who decided to try to either freeze or flinch Rhyperior but when Froslass hit Rhyperior with the move of choice, Rhyperior didn't freeze or flinch.

"Rock Wrecker," said Forrest and Rhyperior used Rock Wrecker from up close which knocked out Froslass.

"Froslass is unable to battle," said Rocio, "Rhyperior wins."

"It's all up to Venusaur now," whispered Nils to himself as he returned Froslass, "Go Venusaur," and Venusaur was sent out. "Use Energy Ball," and Venusaur used the selected attack which hit Rhyperior who couldn't move after using Rock Wrecker. "Energy Ball again," and Venusaur used Energy Ball once again which gave more damage to Rhyperior because the first one lowered Rhyperior's special defense.

"Megahorn," said Forrest and Rhyperior used the attack of choice which inflicted damage on Venusaur and pushed her back.

"Use Sludge Bomb," said Nils and Venusaur used the chosen move which did some extra damage because of the two earlier Energy Balls and also poisoned Rhyperior.

"Use Dig," said Forrest and Rhyperior attacked Venusaur with the attack that was chosen.

"Petal Blizzard," said Nils and Venusaur gave more damage to Rhyperior by using Petal Blizzard.

"Rock Wrecker," said Forrest who knew he had to end the battle and Rhyperior started to use the selected attack.

"Energy Ball," said Nils and Venusaur started to use the chosen move.

The two attacks crashed into each other and made an explosion that knocked both Pokemon back. When the smoke cleared, both Rhyperior and Venusaur recovered but Rhyperior couldn't move because of Rock Wrecker.

"Energy Ball one more time," said Nils and Venusaur used Energy Ball again which knocked out Rhyperior.

"Rhyperior is unable to battle," said Rocio, "Venusaur wins which means the winner of this Gym Battle is Nils, the challenger."

"We finally did it Venusaur," said Nils to Venusaur knowing how far they have gotten since they started the journey.

"Venusaur," said Venusaur happily.

"That was great," said Forrest," and now as a reward for defeating me, I shall now give you the Boulder Badge," and Forrest gave Nils a Boulder Badge.

"Now we both have eight badges," said Tana who was happy that both she and Nils can compete in the Pokemon League.

"And now it's my turn," said Rex, "But I guess I'll have to wait until tomorrow."

"Don't feel bad about waiting," said Forrest, "It will allow you to give your Pokemon some extra training in order to prepare." "Also, You're all free to sleep at our place."

"I guess we can do that," said Nils.

After that, everyone spent the rest of the day exploring Pewter City and then that night, they went to where Forrest and his family live to spend the night.