Team Plasma are a team of unknown origin and background that appear in Pokémon Black and Pokémon White. They wear hooded cloaks similar in style to that of English Knights during the days of Camelot. According to several screenshots we currently have, their intentions are similar, if not the same, as N's, in that they wish to free Pokémon from humans.
Ghetsis was the leader of Team Plasma, and made this team believe that Pokémon Liberation would be good and to release their Pokémon. N, the king of Team Plasma thought he was doing good for the Pokémon, when he was actually doing bad. Team Plasma makes speeches in multiple towns in Pokémon Black and White. In the Post game, Hilbert or Hilda (the player character) will have to hunt down the seven sages, but will only find six, because the seventh is Ghetsis. The notable ranks of Team Plasma are King (N), Seven Sages, and Ghetsis' Shadow Triad. The Shadow Triad gives the player character an Adamant Orb, Lustrous Orb, and Griseous Orb on the Tubeline Bridge during the Pokémon Black and White post game.