Following the events of the season 2 finale, Sari is shocked over learning that she is a robot and refuses to believe Sumdac's claim that he discovered her as a small, mechanical baby. Sari later gives herself an upgrade using the power from her Allspark key, remaking her body into a taller, teenage version of herself. Meanwhile, on Cybertron, Shockwave sabotages several Elite Guard operations in preparation for Megatron's return, unaware that Megatron and Starscream are lost in deep space.