JJ and Kristyn uncover information tying Hicks to 20 murders over the past several years. Even more shocking, continued investigation uncovers the fact that Hicks was not a lone wolf: he, along with three friends from college, are responsible for committing more than 80 murders as part of an online multiplayer game that they created ('The Murder Game'). The criteria for each challenge, including target cities, victim 'persona', and type of weapon, is dictated by a computer program leveraging Artificial Intelligence to 'learn' and continually make the game more interesting and challenging. Fans of The Murder Game place bets on the outcome via the Dark Web portal and can earn substantial prize money if they bet on the Slayer amassing the most points for their execution.
As they close-in on the group of killers, JJ and Kristyn find themselves being targeted by the very people they're investigating and scrambling for their lives. As the case comes to an end, they find that the old adage that 'no good deed goes unpunished' definitely rings true.