The green Verdi people are small but brave guardians by the lake. Young Verdi people can only become guardians when their hair turns brown. However, before that, life was boring. Green haired young people are not allowed to fly on warblers, row alone, or ride wild frogs in rodeo performances. Willie Wester's great dream was to become a guardian, but his curiosity always brought him trouble. However, when the enemies of the Green couple and the swans formed an alliance by the lake, the entire lake was in danger. The guardians were helpless, but Willie came up with a bold plan to save his home and trapped friend Jeremiah Jump. Fortunately, he was not alone because his grandfather, water snake, and frog also came to help him.
