Inseparable friends George and Annie are joined by another boy - computer genius Emmett. But Annie and Emmett's relationship did not work out from the very beginning. And yet, only the three of them will be able to unravel the mysterious messages that lead them from planet to planet. And at the end of this unsafe journey, not only will we discover the mysterious sender, but also reveal one very old secret.

Whether our heroes will discover life on other planets is a big question. But they will learn what redshift is, how to use binary code, what is the probability of the existence of life outside the Earth - and much more that is included in the school curriculum in physics and astronomy, and also that is not included in the school curriculum, but is of great interest to boys, girls and their parents.