Reeling from the attempts on his life and that of his family, Police Inspector Robert Finlay returns to work. His first job - to investigate the Eastern European sex-slave industry, just as a key witness is murdered. Finlay, along with his new partner Nina Brasov, finds himself facing a ruthless criminal gang, determined to keep control at all costs. Finlay's efforts to protect his wife and child may have been in vain though, as an MI5 protection officer uncovers a covert secret service operation that threatens them all...