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EPISODE

18. White Tulip

When passengers aboard a commuter train appear to have died a still death, it seems that a switch was flipped because all cell phones, mp3 players, laptops, batteries and bodies have been drained of power. As the Fringe team assembles at the bizarre crime scene, Peter remains suspicious that something is amiss with Walter, who is struggling to keep the unimaginable a secret. When the investigation leads them to Alistair Peck, a very powerful man who has tremendous energy with severe consequences, an ironic set of circumstances surface.

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Plot summary and ending

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Complete story — includes the ending

MIT astrophysics professor Alistair Peck ( Peter Weller ) is experimenting on his own body to convert himself into a time machine to travel back in time to save his fiancée, who was killed in a car accident several months before. He travels back to a train; this causes the train, and the passengers, to be drained of power. When Fringe Division fails to stop him, he goes back in time again. The second time, Walter volunteers to try to stop him alone. During their meeting, Walter shares his belief that ever since he took Peter from the parallel universe, God may be punishing him. Walter says he is looking for forgiveness in the form of a white tulip. After Peck escapes, he is able to accomplish traveling back to his fiancée and reunites with her, before they both die in the car crash. The events before Peck's escape never took place, but Walter is seen writing a letter to Peter about his origins; however, he later burns it upon finishing. In the end, he receives a letter from Peck which contains a simple drawing of a white tulip, telling Walter to forgive himself.

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