In this episode of 'Kill List', Travis Harper, a former Marine, learns he is on a darknet hit list, prompting paranoia over his safety and that of his children, especially concerning his ex-wife Kelly. As local police dismiss his concerns, he and his partner Liz enlist the FBI, who begin investigating Kelly. Agent Baker confronts Kelly, revealing the seriousness of the threats against Travis, leading to her arrest for attempting to hire hitmen. This episode delves into the disturbing realities of obsession, control, and the dark consequences stemming from personal conflicts.