Team Rocket has stolen all of the Pokmon from the Nimbasa City Pokmon Center, cut off access to the city and have fled via the subway. Ash and friends give chase, and are soon joined by Ingo and Emmet, the leaders of the Battle Subway system. Will they be able to stop Team Rocket from succeeding?

Ash and friend finally arrive in Nimbasa City. Before heading to gym they decide to check out the Battle Subway. However, a mysterious event causes the Subway System to halt. They head to the Pokmon Center where strange events begin happening. Mewoth disappears and Nimbasa City is cut off from the rest of the region. Ash and friends go to help the Subway Bosses and find out what is going on.

While on the way to Nimbasa City, Ash and friends come across a Cubchoo that has been separated from its pack. They decide to help find the pack, but that proves difficult when another group of Beartic constantly attacks them.

Ash, Iris, and Cilan arrive in beautiful Eindoak Town for a battle competition. During the competition something happens to Ash’s Pokémon and he wins the tournament. It is revealed to be the work of the Mythical Pokémon Victini. They find out that long ago Victini had a special friendship with the King who ruled the Kingdom of the Vale. However, the kingdom has long since disappeared. Damon, a descendant of the People of the Vale wants to restore the kingdom to its glory. He has convinced the Legendary Dragon Pokémon of Unova to help him in his quest. Damon then sets out to capture Victini so he can use its power to restore the kingdom. However, disaster ensues putting the entire area in chaos. It is now up to Ash and friends to awaken the other Legendary Pokémon and stop Damon.

On the way to Nimbasa City, Ash and friends encounter a Beheeyem. After discovering it’s secret ability, they decide to try and test it out. Meanwhile, Officer Jenny shows up and reveals that she is investigating the Beheeyem.

While continuing to Nimbasa City, Ash and friend come across a Purrloin. Meowth and Oshawott fall for the little pokémon and soon begin to follow whatever it says. However, Cilan doesn’t trust Purrloin and follows everyone reluctantly.

On the way to Nimbasa City, Ash and friends find Meowth of Team Rocket lying in a bush. Meowth says he botched a Team Rocket operation and was fired and disowned. He then joins Ash, Iris, and Cilan. Meanwhile a Scrafty comes by and kidnaps Axew.

The Club Battle semi-finals conclude with Ash and Iris as the victors. Now the two friends are set to go head to head in the tournament finale. Who will be crowned the victor?

The Club Battle tournament continues with Ash and Georgia’s battle ending with Ash’s victory. Next up is Cilan vs Luke and Iris vs Stephan. With tough opponents ahead of them will Cilan and Iris continue to advance in the tournament?

The next round of the Club Battle tournament begins with a battle between Cilan and Trip. Meanwhile, Ash, Iris, and Bianca wait in the wings for their upcoming battles. Who will progress to the next round?