It was only when he found himself on an unknown planet that Galactic Captain Ivan Tamantsev realized that his successful escape from captivity had turned out to be a set-up by someone. Mysterious changes in his own body caused horror in the fearless warrior. But for him this was only the beginning of the epic... And the true history of the planet with the meaningful name Rock went back several million years. It was here that the blue-skinned Harammin created biological weapons to combat intelligent insects migrating under the onslaught of the Forerunners throughout the Universe. And when colonists from Earth landed here a thousand years before the accident of Ivan Tamantsev’s fighter, they immediately underwent mutation. Now a similar fate threatened all the inhabitants of the Universe... The author's title of the book is “Retaliatory Strike.”