Accidentally finding themselves in a destroyed city on an asteroid, the crew of the Sagittarius spaceship came across a strange video. In it, Samantha, the magician Gandalf, and the biorobot Vin saw what they had been trying to find for a long time - the mysterious “Sword of Time,” a top-secret weapon that can make layers of the Earth or unwanted states disappear. It threatens the planet in the future, but it cannot be reached in the present. And then, without hesitating for a minute, the crew of the Sagittarius spaceship sets off into the most distant past.