Elliot Mandelcorn

Olivia uncovers a dangerous force that may be connected to Walter’s past experiments with the drug Cortexiphan. Their investigation forces Walter to leave the lab for the first time in years as he and Olivia head to Massive Dynamic in New York to examine old case files. Walter struggles with life outside the lab as he comes face-to-face with the demons of his past.

Enjoying their con-artist lifestyle, Ezra, Richard and Jules close in on Maddie; Lenny Cohen cleans up Sally's mess; Maddie is devastated when the Doctor gives her a new assignment.