While traveling near the beach on Tangelo Island, Ash noticed a bunch of Pokémon trainers beating up a Lapras. He quickly went to its rescue and with Pikachu's help, they managed to scare off the trainers. They took the Lapras to Nurse Joy who said it didn't receive any serious injuries. Large schools of Lapras pass Tangelo Island by every year and Tracey surmised that Lapras must have gotten separated from its group during a large storm.
Initially Lapras was afraid to have any contact with people after its incident with the guys on the beach treated it. After Ash rescued it from Team Rocket, Lapras began to trust Ash and became good friends with him. Lapras was quite helpful by letting Ash and his friends ride on its back as they traveled between all the different islands in the Orange Archipelago.
Orange League Final - Vs. Ash Ketchum (Rocky Field)
After Gengar confused Tauros Ash quickly recalls Tauros and sends out Lapras in the water pool in the middle of the stage. Lapras goes underwater to dodge Gengar's initial attack and then resurfaced to shoot a water gun directly at Gengar who only manage to get out of the way after taking some damage. Gengar shoots Night Shade at Lapras who counter attacks with Ice Beam, the two attacks collide with each other and the resulting explosion eliminate both Pokémon which meant Drake has lost three Pokémon and Ash had only lost one.
After Ash had won the battle against Drake he called out all of his Pokémon that participated in the battle on the stage as Drake presented him with the Winner's Trophy. Then Ash, Pikachu, Tauros, Lapras, Squirtle, Bulbasaur and Charizard all had their handprints set in stone to be remembered in the Orange Island Hall of Fame.