Ash and the gang stop to take a lunch break on their way to the Nacrene City Gym. While eating, they spot a most unusual Dwebble—one that doesn’t have a stone on its back to protect itself from its enemies. They watch as it finds a rock it likes and carefully carves it into the perfect shape. But as soon as the work is finished, three other Dwebble appear and steal the stone away!

Our heroes offer to help Dwebble get its home back from the thieving trio. Dwebble is quite independent and wants to take care of things by itself, but Ash convinces it to let him and his friends even the odds a bit by splitting up the three bullies. Cilan’s delicious Pokémon food is the perfect distraction, and Dwebble uses its wits and strength to defeat the villains one by one and reclaim its rock home!

After celebrating with the happy Dwebble, our heroes are ready to say farewell and move on…but soon discover that Dwebble is following them. It seems Dwebble bonded with Cilan and his Pansage during their adventure and now wants to join the team—and Cilan is delighted to have such a clever Pokémon on his side!

And so, we leave our heroes with a brand-new member of the family as they continue their journey toward Nacrene City. Meanwhile, Team Rocket has successfully completed its newest mission—breaking into the Antimony Research Lab and stealing all the data concerning a mysterious object called the Meteonite...

Pokemon.com Synopsis