FBI Special Agent Lexie Montgomery goes deep undercover to investigate the Earth Liberation Front, a domestic terrorism group operating in the South Carolina Lowcountry. As Lexie struggles to infiltrate the ELF, she soon realizes everything may not be as it seems in the Lowcountry. Lexie's investigation spirals out of control and places her life in danger after someone in her trusted inner circle reveals her undercover identity. Now Lexie must work to bring those responsible to justice . . . if only she knew who she could trust.