Digimon Adventure Episode 3 -

Yamato (Matt), who was separated from the group on the shore, dives into the water to save his younger brother, T.K.. Seadramon quickly targets Matt, wrapping its powerful tail around him and pulling him underwater.

While most of the group sleeps, Tai and Agumon keep watch. An ember from their campfire accidentally strikes what they believe is a red leaf, but it is actually the tail of a massive, sleeping . Enraged, the sea serpent attacks, dragging the island—and the trolley—into the middle of the lake. Matt’s Bravery and Garurumon's Debut Digimon Adventure Episode 3

As Matt struggles in the monster's grip, his Digivice begins to glow. This surge of energy allows to Digivolve into Garurumon , a massive wolf with blue and white fur. Yamato (Matt), who was separated from the group