The Tide-Turning Update

The Tide-Turning Update (逆転の武装鋼化, Gyakuten no Appudēto) is the twenty-first episode of Digimon Adventure:

Summary
The Holy Digimon that turned into a Digi-Egg was snatched away, and Taichi and Yamato chase after SkullKnightmon. Meanwhile, the rest of the Chosen Ones that are back in Tokyo fight remotely with their partner Digimon in the Digital World.