Ash, Misty, and Brock face many roadblocks on the path to success, some metaphoric and others in the form of gigantic Magcargo that refuse to step aside and let a traveler pass. When Misty's Water tactics fail to move the stubborn Fire Pokémon, a passing trainer taunts her, declaring that Fire Pokémon, his specialty, are far superior to Water. Their rivalry escalates into a full-on Pokémon battle, from which Misty emerges victorious. The Fire Pokémon trainer doesn't hold a grudge for too long, though, and in the end an unlikely collaboration between Fire and Water reopens the path to the Johto League.
S5 | Episode 27
The Rage of Innocence