Video : Sleepless in Pre-Battle!

Ash heads to the Canalave Gym for a battle, but the Gym Leader is not there, and all of his pupils are fast asleep. After bumping into Officer Jenny, they find out that a bunch of people in town are having nightmares. They decide to help find the source, and it leads to Team Rocket. They have created a machine that gives everyone nightmares, and thus makes the citizens want to buy what they believe to be real Lunar Wings. Ash, Dawn, Brock, and Jenny manage to destroy the machine, but that night they still have nightmares. With no other option they head to Newmoon Island to find the legendary Cresselia, hoping she can help.

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S12E01 - Get Your Rotom Running!