When Joe and the gang meet an ice princess, they discover Fire Leo is with her, and has become more or less her knight in shining armor. However, Leo's furious brother, Frost Tiger, intends to tear down the princess's castle. Joe and Junior barge in to stop him from leveling the building, just before things really fall apart. Leo confronts his brother, who can't understand why he decided to be with the princess, and the two have a nasty battle that leaves the princess worried. Leo explains he can't be with her because of his superheated body, but she continues to fall for him, while Silvia jumps in to help the princess fight off Gedow. Fire Leo defeats Frost Tiger, but the aftermath causes his brother to fall down a cliff, and Fire Leo is unable to save him. Fire Leo is visibly hurt by the apparent demise of his brother, and feels like the princess should not be in love with a monster who does nothing but hurt those he cares about. The lion leaves into the unknown, causing the princess to shed a tear that becomes a snowflake. (Source: Wikipedia)

Aired on: 8/5/2005