Watch Digimon Digital Monsters Episode 20 English version online and free episodes. Anime Episode guide, Chapter Digimon Digital Monsters Episode 20 English dubbed The Earthquake of Metalgreymon, Tai manages to rescue Sora. Datamon pulls himself, Etemon and many of Etemon’s minions directly into the Dark Network. When Etemon reappears, having fused with the network, Greymon Digivolves to MetalGreymon to fight him. The battle ends up opening a portal that sucks away Etemon and transports both Tai and Agumon back to Tokyo.