Episode Title:
Preboot / Reboot.
Episode Description:
Preboot: During an excavation of human artifacts, Finn, Jake and Susan Strong (voiced by Jackie Buscarino) are greeted by a mysterious stranger named Dr. Gross (voiced by Lennon Parham) who lives in a subterranean ship. This enigmatic figure believes that nature can be "upgraded" via cybernetics. At first hospitable, Dr. Gross turns violent and antagonistic when Finn, Jake, and Susan decline to be upgraded. During the course of the episode, Dr. Gross discovers Susan's cybernetic implant, but is unable to activate it before her ship is destroyed.
Reboot: After Finn accidentally causes Susan to be shocked, her cybernetic implant activates, She turns into a mindless drone and attempts to capture Finn. In the process, a chance blast of energy from a gumball guardian causes Susan to grow into a hulking monster. Finn and Susan eventually arrive along the shore, where they engage in a fight. During the fray, Finn's grass arm attempts to harm Susan, and Finn resists. It eventually detaches from his arm and merges with the broken Finn Sword, creating a mysterious grass-hybrid creature.
