Pokémon: Lucario and the Mystery of Mew

In ancient times, Lucario warns Sir Aaron of an approaching war beyond the Tree of Beginning. He pleads for caution, but Aaron betrays him and seals Lucario inside a mystical staff. The act seeds a long-lasting conflict that shapes the history of their world.

After Lucario is sealed, the staff is passed through the ages to the Queen of Cameron Palace, carried by a Pidgeot. The staff remains a guarded relic, symbolizing the fragile balance of power.

When the Tree of Beginning begins to glow brilliantly, the looming war is halted and a fragile peace is preserved. The moment marks a rare pause before future cycles of conflict.

Centuries pass and Ash Ketchum and his friends arrive at Cameron Palace for a festival honoring Sir Aaron. The scene situates Ash within the legend of Aura Guardians.

Ash enters a palace tournament wearing a replica of Aaron's outfit and wins, earning the title of Aura Guardian for the year. The victory establishes his connection to the ancient legacy.

As part of the celebration, Ash is presented with Aaron's staff. His aura unintentionally frees Lucario from the centuries-long imprisonment.

Lucario informs the gathered crowd about Aaron's betrayal, explaining how the master sealed him away to protect others from the looming war. The revelation shifts the mood from triumph to uneasy truth.

While celebrations unfold, Pikachu and Mew are chased by a pair of Weavile. Pikachu protects Mew and teleports them away, along with Meowth, to the Tree of Beginning.

Kid Summers decides to assist and seeks Lucario's aid as their guide toward the Tree of Beginning, aligning with Ash and his friends. This decision marks a new alliance and a more complicated journey.

On the journey, Lucario uses time flowers to recall Aaron's history and the moment of his capture. Max offers Lucario a chocolate bar, helping him begin to trust humans.

The group reaches the heart of the Tree of Beginning and confronts its guardians—Regirock, Regice, and Registeel. The guardians challenge their resolve and the fate of the tree.

Inside the tree, the antibody-like defenses trap everyone and a bond between Mew and the tree calms the defenses, but energy disruption leaves Mew gravely ill and endangers the tree's life. The group fights to keep the balance intact.

A time flower reveals that Aaron sacrificed himself, using his Aura to seal himself away to stop the war in order to spare his friends and student. The revelation reframes the journey as an act of selflessness.

Ash and Lucario fuse their auras to reverse the tree's self-destruction and save Mew, though Lucario pushes Ash aside to allow the ritual to complete. The act stabilizes the Tree and revives hope.

With the Tree restored, Lucario sees a final vision of the dying Aaron and learns that his master sealed him away to spare him. He dies peacefully, grateful for their friendship. Kid Summers decides to keep the discovery secret while Ash vows to honor Lucario's memory.