Pokemon: Mezase Pokemon Master EP7 - Ride, Lapras, Ride!

Ash reunites with his Lapras that he had met on the Orange Islands. Lapras leads Ash and his friends over to an island where a Wailmer is trapped in a hole. The group manages to free Wailmer, and again after it had evolved into a Wailord. Eventually, Ash becomes trapped in a cave before being rescued by Lapras. At sunset, Lapras says its goodbyes to Ash once again and returns to its herd.