Of the five largest extinctions of living things in the history of the Earth, only three were caused by natural causes. The remaining two are an attempt to colonize and destroy life on our planet. I knew about this, but I could not assume that my colleague from the elite Special Operations Corps of the Martian Guard would have to participate in these events. To preserve my home world, I have to defeat aliens with unthinkable technologies. Yes, the journey from the distant past to the familiar world was not as easy as I expected. But my goal remains the same: go back. And to save the native world from a terrible fate - to be "counted" by unknown Creators.