Pokemon Season 12 - Episode 592 – Frozen on Their Tracks!

While Ash, Dawn, and Brock are taking a train to Lake Acuity, they meet a strange man named Looker, who is trying to distribute luchboxes to the passengers of the train, which he had brought too many of. The group later meets the train's crew and notice the train is operated solely by their Ampharos. The group is impressed by the relation between human and pokémon. However, the train is stopped at a red signal. Curious, Looker decides to investigate. After finding many leads, he soon learns that the ones responsible were Team Galactic!