Alien civilization invades Earth. On an emergency basis, a special military unit is being created, the task of which is to eliminate or at least weaken the threat to humanity in general and Russia in particular. The new detachment is headed by Senior Lieutenant Dmitry Larin. There is simply no time to plan actions. During the first mission, Larin gets into a dangerous skirmish, where he hardly defeats the commander of an alien assault ship. But there is no euphoria from the victory. Because for the soldier himself, it has become something much more... The one that could change him forever.