When Blackarachnia overhears Optimus and Rhinox discussing her Predacon reprogramming by Tarantulus, she comes to believe that Optimus has decided to surgically remove Blackarachnia's Predacon core without regard for the risk to her and she deserts the base. While on the run she is hunted by Dinobot II. Silverbolt pursues as well, and confronts her on her desertion, at which point she reveals to him why she left. When she confronts Optimus with this, she is told that while the reprogramming could be beneficial to her, it is and always has been her choice to make whether or not to undergo the process. Feeling that the threat to her life is over, she returns to the Maximals.

Blackarachnia attempts to become a Transmetal II with the help of the alien device she had stolen. However, thanks to the intervention of Silverbolt, the experiment takes a terrible turn and threatens her life. Rhinox travels into her subconscious to try to rid her of her Predacon makeup, but Tarantulas and the Predacons are successful in destroying Blackarachnia indirectly. However, as Silverbolt is out for revenge, the alien device reincarnates her body into a Transmetal, thus giving her a new form.