A virus wipes out civilization, leaving the world in ruins. University student Lu Beichen and retired soldier Du Wei lead a group of survivors on the road to survival. They soon discover that the "Prometheus" virus is no natural disaster, but part of a shocking conspiracy called "Project Ark," designed to wipe out all of humanity. From a perilous urban graveyard to survivor camps divided by conflicting beliefs, they uncover crucial evidence amid betrayal and sacrifice. Faced with a well-equipped Ark kill squad, the team infiltrates the "Hive" laboratory where the virus originated and steals the original virus strain and vaccine samples, enough to change their fate. Now they carry this faint spark of hope as they struggle onward through despair, determined to secure one last future for human civilization before dawn breaks.