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EPISODE

10. Grey Matters

A Fringe investigation is triggered when a patient at a mental institution undergoes an impromptu brain surgery that unexpectedly leaves his brain exposed. Despite the unthinkable circumstances, the patient's condition and sanity miraculously improves before the Fringe team arrives. While Agent Dunham and Peter scan surveillance tapes, Olivia recognizes a familiar face as Thomas Jerome Newton, the leader of the "shape-shifters." As similar cases stack up, the Fringe team heads back to the lab to determine exactly how patients are being cured.

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Plot summary and ending

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Complete story — includes the ending

The team investigate a mental patient, who received brain surgery from a group of shapeshifters, curing his insanity. Viewing security footage, Olivia recognizes Thomas Jerome Newton ( Sebastian Roché ), the leader of the shapeshifters who was reanimated from the end of "Momentum Deferred". When similar cases occur, the team learn Walter had three pieces of brain tissue removed from his Hippocampus, which were stored in the brains of the cured patients. Knowing only Walter could comprehend the memories concerning how to open a portal to another reality, the shapeshifters kidnap him. By the time Walter is found, Newton has learned what he needs to know and escapes. As Walter undergoes an MRI, he imagines a past surgery, where he is being operated on by William Bell, who removed Walter's brain fragments and hid them in the patients' brains to prevent anyone else from gaining the information.

Sources and content license

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