Midnight, the 23rd century. Humanity is attacked by a hostile alien race. Having forgotten how to fight for three centuries of peace and unable to defend their home planet, Earthlings call for help from veterans of the past—the most skilled, desperate, and ruthless fighters in human history: the officer penal battalion of the Red Army that fell three hundred years ago, and now has been resurrected to “atone for guilt with blood” once again. From the Great Patriotic War—to Star Wars! From World War II—to the First Galactic War! From 1944—to open space! Penal battalions are taking off!