After Latias shows our heroes a mysterious vision of Latios in trouble, Ash and his friends decide to help. They discover that Latios is attempting to flee a Pokémon hunter! Latias starts to panic when its sight sharing power loses contact with Latios, but Brock and Ash convince it to settle down for the night. In the morning, the group follows Latias to a cave where Latios is hiding. Latios is distrustful of humans, but before Ash can convince it of his goodwill, the hunter appears! Despite a fierce battle, Latias is captured. Now Latios must work together with Ash to save Latias and bring the hunter to justice. (thetvdb.com)