Alex and Sahli are the best friends, despite the fact that Alex is an ordinary boy, and Sahli lives in a magic ball and wields magic. That's why they usually go on adventures together. But not this time! Friends will have to go... back to the past, when there were dragons in the world! Alex is the first to go back in time, because only Sahli can bring him back. But everything goes wrong - and now Alex is locked in a cave, the exit from which is guarded by a fire-breathing dragon. And the worst thing is that the boy can’t even call a friend for help! And now Alex can only rely on himself. After all, you can defeat a dragon not only with magic, but also by learning its secret!