3화: 타이의 실수로 괴수를 자극한 후, 가루루몬이 시드라몬을 물리치기 위해 진화하다
The group leave the beach and find themselves in the middle of a territorial confrontation between two Monochromon, escaping unharmed as they come across a trolleycar by a lake around dusk. They catch fish for dinner and decide to keep watch while staying overnight, but Tai and Matt argue over which of them should take the first rotation. During the first shift, Tai accidentally awakens a Seadramon when he drops a burning stick on its tail. Seadramon pulls the island that the trolleycar to the middle of the lake and attacks Matt as he tries to save his brother and their friends. His partner Gabumon immediately evolves into Garurumon and defeats Seadramon. After Gomamon's fishes bring the island back to land, the group falls asleep. (Source: Wikipedia)