Digimon: Digital Monsters S02 E01 Enter Flamedramon

The Digital World falls under attack from the Digimon Emperor, and the Digimon are unable to Digivolve. When Kari Kamiya, T.K. Takaishi, and their classmate, Davis Motomiya, enter the Digital World to save Tai Kamiya, Davis lifts the Digi-egg of Courage and meets Veemon, who is able to Armor Digivolve into Flamedramon and save them from an enslaved Monochromon