Autumn 1989: No one suspects that the last days of a small country have long been numbered. Especially in the tranquil town of Malkow in the heart of the GDR, everything is going its socialist way – at least on the surface. In secret, ten-year-old Rike (Flora Li Thiemann) and her friends Fabian (Finn Fiebig) and Jonathan (Luca Johannsen) are working on a spectacular invention that will change the world, but above all, it will beam Uncle Mike (Jacob Matschenz) from West Berlin back to the East. Inspired by their favorite series, Spaceship Interspace, they build a teleporter. What the three don't realize is that Rike's parents (Yvonne Catterfeld and Maxim Mehmet) are considering “going over” themselves. And the loyal police officer Mauder (Devid Striesow) is already on the trail of the inventive troublemakers. The situation comes to a dramatic head when the experiment takes an unexpected turn on November 9, 1989: it is not Mike who ends up in Malkow, but the entire village population on the Berlin Wall. Did the children accidentally change the course of history?