The offices of the Drug Enforcement Administration (DEA) are bombed by unknown assailants. Assistant Deputy Director Shane Dickson enlists LAPD detective Ben McCall, along with Federal Bureau of Investigation (FBI) agent Kimberly Evans and DEA agent Eddie Guerra to track down the culprits. She informs them of the late Patrick Stone, who was investigating the Cartel up until his death in the bombing. They are also tasked with protecting Stone’s only daughter, Jessica. Kim reveals that the Cartel has been purchasing military-grade hardware from an unknown source. During the story, each character illegally interferes with the investigation for various reasons.