During
a train trip, Ash and friends spot an injured Pokemon they don't
recognize. They're planning a rescue when the train is attacked by the
Legendary Kyurem! Ash and the others manage to get the unfamiliar Pok
mon to safety, and they learn its story. The Mythical Pok mon Keldeo is
on a mission to rescue its friends-Cobalion, Terrakion, and Virizion,
the Swords of Justice-from Kyurem's icy clutches. But Kyurem has other
ideas, and when it transforms into Black Kyurem or White Kyurem for
greater power, things look grim! Can Keldeo find the courage to stand up
to this menace?