The Dark Masters are a fiction villain group that appear in the first season of the Digimon media franchise, Digimon Adventure. The group consists of four powerful Mega-Level Digimon. They are MetalSeadramon, Puppetmon, Machinedramon, and Piedmon. They are the fourth major villains in the first season of the series.
The first appearance of the Dark Masters is in episode number forty of the first season entitled "Enter The Dark Masters". MetalSeadramon, Puppetmon, Machinedramon, and Piedmon create a trap to capture and destroy the DigiDestined. The DigiDestined drop into the traps set by the Dark Masters. The Dark Masters quickly defeat the DigiDestined and are about to destroy them when they are saved by Piximon who sacrifices himself so that they can escape.
Byproducts of the chaos Apocalymon had on the Digital World, the Dark Masters were started by Piedmon, with MetalSeadramon, Machinedramon, and Puppetmon joining him when they began their reign of terror throughout the Digital World while the DigiDestined were fighting Myotismon in the Real World. Prior to the events involving the DigiDestined, the Dark Masters defeated and sealed away the four Sovereigns. When the DigiDestined returned to the Digital World, they discovered that the Digital World was warped (due to Apocalymon) and the Dark Masters used some of the land's data to form Spiral Mountain with their base of operations, Piedmon's castle, on top. The Dark Masters outmatched all eight DigiDestined. Chuumon was killed by Piedmon, and Piximon sacrificed his life to distract the Dark Masters while the DigiDestined escaped. The DigiDestined managed to climb Spiral Mountain, and defeated each of the Dark Masters with some help from their old Digimon friends. When a Dark Master is defeated, his area of spiral mountain will disappear, like MetalSeadramon, when he was defeated, the blue ocean round spiral mountain disappeared to reform on the surface of the Digital World. The Dark Masters arc is 13 episodes long spanning from episode 40-52. For the last 2 remaining episodes they face Apocalymon, a manifestation of the remains and hatred of the digimon who failed to digivolve, who employed a plethora of attacks and techniques including those of former major villains including Devimon, Myotismon, MetalSeadramon and Machinedramon.
NOTE: The four Sovereigns are not mentioned or seen in Digimon Adventure, but Azulongmon told the DigiDestined in Digimon Adventure 02 what the Dark Masters had done to them in Digimon Adventure.
Read more about Piedmon at Wikipedia ...
Official Site: Toei Animation
Links: Wikipedia Absolute anime bio Megchan's Digimon Encyclopedia