For many years, humanity has been trying to find confirmation that we are not alone in the vast Universe, that somewhere there is still life. Flights to the moon did not lead to positive results, and now scientists have high hopes for the "Red" planet. A team of researchers was sent to Mars, who spent a lot of time here exploring this mysterious planet. They only have to spend several days here, and they will go home. In order not to waste time waiting for the ship, scientists continue to study the extracted materials. Quite unexpectedly for themselves, they find traces of life forms on the ground. After this find, two of the members of the group decide to go to the Martian valley ...