The Earth is threatened by an invasion of insidious aliens... the only question is which ones! Because the two races of “aliens” who are planning to invade our planet are so far mired in war with each other. So, maybe it’s better for earthlings not to wait for an invasion, and instead intervene in an alien war? Unfortunately, the Earth’s government is not quite ready to adhere to this reasonable plan. So it’s up to the “team of amateurs” to save our world - the pilot of an ordinary patrol starship Maxim Ilyin, the alien adventurer who has important information and his faithful friends - hard-drinking provincial proletarians Kolyan and Tolyan. Will it work out? That's great! It won't work? Then... it's all the aliens' fault!