Reeling from the sudden death of a close friend, James Butler and Erica Walsh are pulled back into the shadow world of Mexican cartels and the CIA. Seeking to avenge the murder of their friend with only his haphazard notes to guide them, they puzzle through the possible connections searching for anything concrete. As they investigate his murder, and his notes, they find unsettling links between drug trafficking, American gangs, the CIA, and the opioid epidemic. Determined to find the truth hidden among cases they thought were long closed, Butler and Walsh call on friends and colleagues to help them survive the crosshairs that got their friend killed. With the threat spreading across more of their contacts, they must uncover the truth before they are buried in lies.