Julka was convinced it was going to be a boring summer in their small town. Everything changed on Wednesday afternoon when she, Adam and Lina discovered a fresh trail of fire in the woods behind the school. When they got closer, they saw something that resembled... a piece of old sheet metal. Except that no car would have left such a mark. Adam, the bravest of the three, was the first to slip through the breaking branches. "Come on!" - he whispered. Julka felt a thrill of excitement, and Lina corrected her glasses and marched after them. A strange structure appeared to their eyes: a perfectly spherical, shiny ship, the size of a large car. The whole thing was covered with silver panels, and blue lights shimmered at the entrance. "I think it's... a spaceship?" - whispered Lina, taking a deep breath. Adam started looking for the entrance. After a moment, there was a quiet hissing sound and a section of wall slid away, revealing the interior. Inside, it was cool but pleasant. Transparent screens hung from the ceiling and coloured panels lay on the floor. Suddenly, one of the screens lit up green and an inscription in an unknown language appeared on it. Julka noticed that on one of the seats sat... a small, blue-skinned boy. He was staring at them with big, shining eyes. As he tried to say something, strange sounds came from the loudspeaker, then a voice began to form familiar words: "Help me. I need to get home before they come..." Suddenly the whole cabin was filled with orange light, and through the transparent roof could be seen flashing dots approaching fast from the sky....