Digimon: In Space

Digimon Digital Monsters  (デジモンアドベンチャー, Dejimon Adobenchā ?) is a Japanese animated television series created by Akiyoshi Hongo and produced by Toei Animation based on the Digimon virtual pet made by Bandai and is the first anime installment in the Digimon media franchise. The series is continued with the same characters in Digimon Adventure 02.

The planning for Digimon Adventure started in 1998 and was done in cooperation by Toei Animation, Bandai and Fuji Television.

Plot
Taking place a few years after Digimon Adventure, the Digital World comes under attack by a mysterious human calling himself the Digimon Emperor who is enslaving Digimon with his black rings while building Control Spires that negate Digivolution. To fight him, T.K and Kari, along with three new children, gain a type of Digivice called a D3, which allows them to open a gate to be transported to the Digital World through any computer and a D-Terminal that holds Crest-themed relics called Digi-Eggs (DigiMentals) that allow Patamon and Gatomon, along with the new Digimon Veemon, Hawkmon, and Armadillomon to Armor Digivolve as a counter to the presence of Control Spires. They eventually stop the Digimon Emperor, revealed to be the boy genius Ken Ichijouji, thanks to the sacrifice of Wormmon, Ken's partner