Pokémon: To Be a Pokémon Master

Ride, Lapras, Ride! (1x7)

:

Ash and Pikachu reunite with Lapras, who once traveled with them. Lapras seems to be asking for their help. On the island where Lapras guides them to is a Wailmer stuck in a hole in the cave and unable to get out! Will they be able to rescue the Wailmer?