The long-awaited contact between humanity and “aliens” has finally taken place! Representatives of an unknown alien civilization are presenting people with an PRICELESS GIFT - they are erecting GIANT CARRIERS OF INFORMATION about the Universe on one of the planets SUBJECT TO COLONIZATION OF EARTHLANDS. An offer of peace? An invitation to cooperation? No. A colossal sabotage, the purpose of which was - and BECAME! - destruction of the Earth. However, danger also threatens the remnants of humanity scattered across individual colonized planets... The mysterious non-humanoid civilization of the Sea Stars, spreading further and further across the Galaxy, sweeps away ALL LIFE in its path. A desperate attempt to make contact with the Starfish suffers a crushing failure. Earthlings join the eternal enemies of the Sea Stars - the mysterious Spinners...