Panama, we have a problem - In the evening, our four friends sit by the river and gaze at the starry sky in fascination. Grandpa Pushkin is also said to have been in space back then, says Antje. The travel diary is quickly grabbed and an adventurous flight to the moon begins for three astronauts, always in radio contact with the Little Bear at the ground station. But the spaceship is old and the journey back to Earth is long. Will our star travelers find their way home safely?