Sick Mind.While exploring the wreckage of a crashed Autobot spaceship in a desert, Optimus Prime becomes infected with the Cybonic Plague, a deadly virus that leaves him in a critical condition. Arcee and Bumblebee sneak on to the Nemesis in order to find a cure for the virus. Following Ratchet's advice, Arcee uses a cortical psychic patch to send Bumblebee into Megatron's subconscious, where knowledge of the cure is located. However, Starscream and Knock Out hatch a plan to terminate their leader permanently, putting Bumblebee's mission in jeopardy.