Ep. 3: The Autobots establish a secret base on Lori's family land while fending off a Decepticon attack.

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Coby, Lori, and Bud select a mountainside owned by Lori’s father for the Autobots’ new secret base. Bud suggests a takeoff tower for Jetfire and Vector Prime, while Coby builds the computer system and Lori adds kid-friendly items. In space, Megatron insists on returning to Earth to investigate, despite Starscream’s objections. The Autobots detect the incoming Decepticons and split their efforts: Optimus, Hotshot, Vector Prime, and Jetfire intercept the enemies, while Overhaul, Landmine, and the children apply stealth coating to the base. During the battle, Vector Prime engages Megatron to retrieve a map, using a Cyber Key and tachyon shield. Hotshot shoots down Starscream, and Optimus enters Super Mode to damage Megatron, forcing a Decepticon retreat. Overhaul completes the stealth coating just in time. Afterward, Vector Prime explains Cyber Keys are gifts from Primus and activates the locks for the other Autobots.