 In this episode, BMO, Finn and Jake's sentient computer game, accidentally deletes a core system driver, forcing Finn and Jake disguise to sneak into the MO factory and fix BMO.However, the three are pursued by security guard SMOs (voiced by Tompkins); Finn, Jake, and BMO eventually run into Moseph "Moe" Giovanni (voiced by McCann), the ancient and benevolent human-cyborg creator of the MOs, who explains BMO's backstory.