The Knock

The Knock, a British drama crafted by Anita Bronson, aired on ITV between 1994 and 2000, focusing on the lives of customs officers from Her Majesty's Customs and Excise. The title originates from the iconic “knock knock knock” signal used over the radio to coordinate raids. The series delves into the challenges and moral dilemmas faced by these officers as they navigate the high-stakes world of smuggling and illegal trade, offering a gripping glimpse into the complexities of law enforcement and duty.