Humanity faces an existential threat from the Berserkers, autonomous machines programmed to eradicate all biological life in the galaxy. The narrative follows various human crews and individuals as they encounter these relentless, self-replicating weapons across the stars. Faced with superior technology and cold, calculated logic, the protagonists must rely on ingenuity and sacrifice to survive. The stories are presented through a series of interconnected narratives that explore the grim reality of a war against an enemy that knows no mercy or fatigue.

Readers frequently highlight the influence of this work on the subgenre of killer-machine science fiction. Discussion often centers on the chilling effectiveness of the Berserkers as an implacable, non-human antagonist. Critics note that the episodic structure allows for a broad examination of the war from multiple perspectives rather than focusing on a single hero. The pacing is generally described as brisk, emphasizing the constant threat of annihilation over deep character studies. Many fans appreciate the logical consistency of the machines' programming and the desperate measures humans must employ to achieve victory.