When May's Munchlax gets sick in the middle of Battle Frontier, she doesn't know what to do! Luckily, a kind couple offers to take care of her sick Pokemon, inviting Ash, Brock, Max and May to stay with them while Munchlax gets better. But things get complicated when Team Rocket shows up. James has a secret! Will Jessie and Mewoth help him keep it? Or will they be up to their usual tricks?