Seventeen-year-old Eddie Savage is shocked to learn that the body
of his brother, Steve, has just been washed up in the Thames.
But he soon discovers something even more disturbing, that Steve
had actually been working undercover for the police and was
probably murdered in the line of duty. Determined to avenge his
brother's death, Eddie relinquishes his old life and identity to
take up where Steve left off, throwing himself headlong into his
first mission to infiltrate a tough south London gang. But as he
becomes caught up in the world of crime, Eddie begins to question
where his loyalties lie. Then he makes a terrible discovery.