Pokémon the Movie 2000

An ancient prophecy predicts that a conflict between "the Titans of Fire, Ice, and Lightning" will only be quelled by the "Water's Great Guardian" with the help of a "Chosen One". Lawrence III, a Pokémon collector, plans to capture the legendary birds Articuno, Zapdos, and Moltres and sets out in his flying fortress to the Orange Islands, where he locates and captures Moltres. Meanwhile, Ash Ketchum and his companions, Pikachu, Misty, and Tracey Sketchit, are crossing the Orange archipelago when they are caught in a storm and washed ashore on Shamouti Island. The inhabitants are celebrating their annual festival and select Ash as their "Chosen One", who, festival maiden Melody explains, must retrieve three crystal balls from each of the legendary birds' islands and bring them to Shamouti's shrine.

Moltres' capture upsets the balance of power the birds have over the world's climate and storms start to erupt worldwide. In Pallet Town, Professor Oak notices a change in Pokémon behavior and he and Ash's mother, Delia Ketchum, fly to the Orange Islands after receiving word of what is happening there by Professor Ivy. As the weather starts to change, Ash and Pikachu are brought by boat to Fire Island, where they find Moltres' treasure, but they are interrupted by Team Rocket. Zapdos attempts to claim the empty island, but is then captured by Lawrence, alongside Ash, his friends, and Team Rocket. The group discover Lawrence's plan and, while he attempts to capture Articuno, Ash's Pokémon free Moltres, who in turn frees Zapdos, and the two begin fighting, which causes the fortress to crash on Lightning Island.

Articuno, Moltres, and Zapdos begin battling one another while Ash retrieves Zapdos' Treasure; the group are transported to Shamouti's shrine, guarded by a talking Slowking. The water's great guardian, the legendary Pokémon Lugia, emerges from the sea and attempts to stop Articuno, Moltres, and Zapdos' fighting, but is defeated. With the prophecy seemingly coming true, the group realize Ash is the actual Chosen One, and Lugia - revived when Melody plays the festival song on her conch - explains telepathically only Ash can restore harmony to the world by retrieving Articuno's Treasure. Ash heads to Ice Island, navigating through the legendary birds' battle with help from Team Rocket, wanting to save the world to continue their villainy. Ash retrieves Articuno's Treasure and Lugia starts to fly them back to Shamouti; Team Rocket sacrifice themselves to help in the process. Lawrence attempts to capture Lugia, who uses a powerful Aeroblast to destroy the remains of Lawrence's airship; severely weakened, Lugia and Ash collapse into the sea.

Misty and Tracey rescue Ash and Pikachu and return them to Shamouti, where Ash places the final treasure and Melody plays the festival's song, which causes the storms to subside, bring harmony to the legendary birds, the currents causing disruption to the world's climates to dissipate, and reviving Lugia. Articuno, Moltres, and Zapdos return to their respective islands, and Lugia thanks Ash for his efforts as he returns to the sea. Ash is reunited with his mother who tells him to be more careful, Lawrence contemplates restarting his collection, and Team Rocket are told by Slowking that the audience saw their heroics and they debate whether they should now change their ways.