The Fringe team tracks their suspect to this warehouse where he is conducting his experiments.
Olivia visits the hotel where Walter & Peter are staying.
The Fringe team observes a bridge outside the warehouse window in one of the victim's eyes.
Olivia chases Christopher after leaving the warehouse only to find aged greatly and dying.
Olivia and Peter go to talk to Dr. Claus Penrose about his old experiments with Walter.
Olivia meets with Nina in her office at Massive Dynamic.