Now being married anew and having moved to Albert Einstein House, which is a house formerly owned by Albert Einstein, Rob and Chris have an infant son named Robbie. At first the appliances all fear that their masters will pay more attention to him but later grow accustomed to him. One night, Toaster awakes to find the hearing aid in the attic receiving a message which appears to be transmitted from space. The next morning, Toaster informs the other appliances and Ratso, the family's pet rat, of the events occurring the previous night, leading to the appliances and Ratso agreeing to carefully watch the junk drawer in case of Hearing Aid suspiciously escaping again. The following night, Hearing Aid escapes from the drawer and to the attic once more. Robbie, awakened by the sound of the transmission, climbs out of his crib and follows Hearing Aid. The appliances awaken, find Robbie going up the stairs and pursue him, leading them to enter the attic just as a beam of light appears. The shocked appliances pursue Hearing Aid, but in spite of this, Robbie is beamed into space. After grilling Hearing Aid and learning that Robbie has accidentally been transported to Mars in his place, the appliances contact Wittgenstein, an old supercomputer and friend from their days in college, for advice by connecting a computer to a security camera in the museum that acts like a phone. The appliances, as per a plan by Wittgenstein, create a makeshift spacecraft with the ceiling fan, a laundry basket, the microwave, and microwaveable popcorn as fuel (Calculator is also provided with the required data to be their navigator) and launch themselves into space, leaving only Ratso to prevent two baby monitor intercoms from alerting Rob and Chris. During their flight through space, the appliances meet a pack of sentient balloons who have been let go by human hands and now float endlessly through the cosmos.