Disowned by his family. Married to a woman they forbid. Detective Harry Virdee throws himself into the search for a missing teen, caught up in a county lines drug gang. Following an emotional appeal from the boy's mother, Harry is tempted to cross a dangerous line.

A brutal murder rocks Bradford's underworld, inflaming tensions between its rival gangs. Harry's search for the killer leads him to the victim's ex-boyfriend, discovering details of her secret life. Meanwhile, Saima makes a risky attempt to mend family ties.