The fate of the earth's colony on Jupiter's moon Ganymede hangs in the balance. The crew members of the US Navy cruiser, who secretly arrived on the planet to search for an artifact of an extraterrestrial civilization, unable to withstand the long flight, one after another go crazy. John Kinski, the ship's commander, is ready to press the nuclear button and destroy Ganymede. The cyborg girl Lada, an agent of Russian foreign intelligence, is trying to stop the disaster. She does not hesitate to go into the thick of things, because she has nothing to regret and lose. Lada has already experienced all the worst things that can happen to a person...