The group makes it back to camp, and discovers that the Atrobe have kidnapped about 10 of the explorers. However, Booker shows up, and reveals that he managed to fight his way out, with his Stunfisk, Shelmet, and new Drifblim and Arcanine. After battling Booker, Nack trades Wrench for Bookers Shelmet, and both of them evolve. Nack names his new Accelgor Slimja.
Booker reveals that he managed to find out where Zack is being held captive. He leads the group to the location, They manage to free Zack, but find out that he has been brainwashed by the Atrobe. He thinks he is one of them. Nack challenges Zack to battle and wins. They then take Zack captive.
Penceran meets up with the group and tells them where Denzarks temple is located. It is apparently located underground in the middle of the island. But the only way to access this temple is to destroy all three of the Regi statues. Penceran tell them the location of the third statue, and the group splits up. Nack goes to destroy the Regirock statue, but is stopped by Shalter. After defeating him in a battle, the statue is destroyed. Abby goes after the Regice statue, but has to deal with Franky and his team of Ground, Steel, and Rock types. Jimmy goes after the Registeel statue, but has to deal with Tama.
After destroying all the statues, part of the middle of the island collapses, revealing Denzarks biggest temple. The group enters, only to be cut off my Franky in a tank. Franky revelas that he is actually the cousin of Stephen Stone, and his jealousy of his cousin caused him to join the Atrobe after being shipwrecked there.He reveals that he and the Atrobe made a deal; if he helped the Atrobe build machienes, using his vast knowledge of them, the Atrobe would make Franky a stronger trainer, so he could overthrow Stephen. It turns out the tank is made up of Mind metal, and the entire group cant think strait, causing them to be unable to fight back. However, Abbys Slowpoke Dopey, now a Slowking, appears. He is apparently unaffected by the metal, and defeats Franky with a loud scream.
While exploring the temple, the group finds a room with strange machines in it. In one of these machines is what appears to be an embryo. The group finds out that the embryo is actually a clone of Mew. They want to investigate more, but the room suddenly starts to collapse. They run out.
The group eventually makes it to Denzark. Nack and the others team up and defeat him in battle. Denzark orders all the Atrobe to leave the island, despite the explorers saying that is not necessary. He presses a button, and the temple starts to collapse. The group is about to be trapped by a falling wall, but Titan hold it up for them, staying behind to die.
After freeing the rest of the explorers, the group goes back to camp. Booker reveals that he was never actually part of the International Police, and that his real name is actually Mike.
The explorers wrap up, and eventually leave the island.