The digital universe of Netwerk. Thousands of servers, millions of living Programs (the evolutionary descendents of Apps) living in relative disharmony as one massive social network. It's home to individuals seeking love, happiness, madness, trolling, order, stability, lawlessness, anonymity, individually, community, and everything in between. Binary people making binary decisions... But life is what happens between Zero and One. Life happens within the floating point decimals. For Spark and Tracer, children of their mentor more than their mother, that life is largely focused on determining who murdered their beloved teacher Verity. Backspacers, data corruption, code crashing malware, there are many ways to kill a Program... but not many ways to determine what Program pulled the trigger. That journey to find the culprit, striking out with vigilante justice on the dangerously unchecked elements of Netwerk's chaos along the way, has led them now to a strange conclusion: the murder is rooted in the mystery of the world's origins. And as that world sinks into malware-induced madness, they must determine the true purpose of the killer's schemes before it's too late to save Netwerk's Programs from themselves...