Pokémon S08E01 - Clamperl of Wisdom

While heading to Mossdeep City, Ash and co. notice a life preserver belonging to the Spoink they met before. The reunion is cut short as Spoink's pearl goes missing again. It lands up on an island and Ash and co. try to find Spoink's pearl. Will they find it... again, and how is it possible that a Spoink can balance a Wailmer on its head?