Adam is Episode 6-9 of Trauma Center: Under the Knife. It's a story-only episode.
Story[]
Derek sends off the final Sinner for recovery, and is greeted by a voice through the ship's PA system. Dr. Miller tries to get Derek to return, but Derek insists that he needs to find the mastermind. Dr. Miller divulges Adam's identity: An Austrian man named Erich von Raitenau, born in 1897, who by all means should have died from old age.
They are interrupted by Adam preaching his ideologies through the PA systems. Derek follows the voice into the heart of the base, and discovers Adam, kept in suspended animation. Adam talks about an eighth GUILT strain named "Bliss", and it is through this where he can continue to communicate outside the normal life cycle.
Derek continues to refute Adam's ideology, but starts to succumb to the effects of a gas pouring in from the ventilation systems. He hangs on and keeps trying to debate with Adam, and passes out as he's recovered from the room by the UN soldiers.