Olivia uncovers a dangerous force that may be connected to past experiments with Cortexiphan. The investigation forces Walter to leave the lab for the first time in years and travel to Massive Dynamic to examine old case files. Walter struggles with his emotional state as he confronts the demons of his past.
Directed By
Joe ChappelleWritten By
Jeff Pinkner, J.H. Wyman, Akiva Goldsman
