As Walter notices unattractive changes in himself from his brain restoration (leading him to make a startling request of Nina Sharp), Olivia notices changes in Peter - now cold and calculating - which leads her to learn of his implant as the team labors toward obtaining the next vital elements needed to defeat the Observers.
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Dr. Walter Bishop
Fire up the laser, Agnus. Let's get that hand out of amber.
References Marathon Man
The Man Who Sold the World
Written by David Bowie
Performed by David Bowie
Courtesy of Mercury Records See more