You build relationships to betray relationships. That is the motto for the FBI's undercover program, and special agent Lexie Montgomery is just beginning to understand what that means. Lexie's first assignment is infiltrating a radical cell of the Animal Liberation Front. Underground and operating in splinter groups throughout Los Angeles, the only way in is through Savannah Riley, a new recruit. Savannah left the safety of her small southern town for the bright lights of the city. Pulled into the animal rights movement by her college roommate and a gorgeous anarchist, she sinks deeper and deeper into the dark, paranoid world of ALF extremists. As the actions of her cell escalate beyond simple demonstrations and graffiti, Savannah turns to Lexie to keep her grounded. But as the two women grow closer and the FBI's case builds, Lexie is forced to decide what betrayal really means.