Episode Title:It's a Bot Time.Episode Description:Doc Greene calls the entire Burns family to demonstrate testing of an abandoned time machine. He sends his helper bot Dither into the time warp, which takes the Rescue Bots, Cody, and Frankie along with them. They are transported into the year 1939, with no discernible method of returning to the present. Optimus Prime—informed by Chief Burns of the dilemma—and Bumblebee also travel back to 1939, to provide their Energon (the predominant energy of the Autobots) needed to repower the machine. All the time travelers manage to return to the present, but much to their devastation discover that the timeline has been altered, as they had inadvertently left Dither behind in the past.