The Great War is shaking the ancient planet Sishar. The technocratic West entered into a merciless battle with the East, which built a biological civilization. The most modern military technology collided with the forces of nature. The most powerful weapons of the East have become members of the Combat Community - bioteks, who possess powerful bioenergy power, warriors of Biotor, who are subject to the elements. It was only thanks to them that the civilization of Geralia did not bow to the aggressors of Tikeya. However, the fragile balance can be disrupted in an instant. Sishar scientists have information that another planet rotates in their star system with rich resources necessary to continue the war, and life exists on this planet. The inhabitants of this planet call it Earth... Armadas of combat Tikean aerols are about to fall on the defenseless Earth, whose armies are unable to withstand the terrible weapons of the aliens. Only the biotek Lita and the pilot Notan, who ended up on our planet, and their earthly friends - combat pilot Evgeny Yablokov and his girlfriend Aelita are able to save humanity.