The next group on Reddington’s (James Spader) list for Agent Keen (Megan Boone) and the FBI to look into is the Mombasa Cartel, a ruthless organization that makes billions poaching animals. The focus shifts when skinless bodies of cartel members start washing up on shore. When all signs point to a disbanded Alaskan animal rights group known as the Animal Underground Network, Agent Ressler (Diego Klattenhoff) is sent to investigate.