Following the events of the season 2 finale, Sari is shocked over learning that she is a robot, and assumes that her "father" built her, refusing to believe Sumdac's claim that he discovered her as a small, mechanical baby. Prowl does some research and findss that Professor Sumdac was telling the truth, and deduces that Sari is a Cybertronian Protoform (the early stage of a Transformer) that scanned Professor Sumdac's genetic information.
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