Ash contacts Professor Oak who tells them about a hotel in the city that serves a delicious dessert. They head to the hotel, but it is closed. As they turn to leave the door mysteriously opens. They then head inside where they are attacked by a Rotom.

Roark, the Oreburgh Gym Leader, and son of Byron, the Canalave Gym Leader, is visiting his father. The two of them, both users of Fossil Pokémon, are having an argument about who likes them more; and they end up battling. Meanwhile, Ash has returned to the Canalave Gym for a Gym Battle after hearing that Byron is back.