Fringe (2008) - 2x04 - Momentum Deferred

Recuperating from the traumatic and alarming meeting with Massive Dynamic founder William Bell (guest star Nimoy), Agent Dunham consumes a powerful "fringe" concoction that Dr. Bishop prescribes to stimulate her memory. Meanwhile, the Fringe Division investigates a series of robbery cases that are tied to shape-shifting. As clues are tracked and memories are jogged, another woman experimented on by Dr. Bishop is introduced and a flashback reveals more about Olivia's visit to the alternate reality

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