

Season 5 • Episode 4
LatestWhen a teenage girl goes missing, an online pedophile ring are the chief suspects. An explosion kills the main suspect. The team race to find the girl before she is killed.
The Knock is a British television drama series, created by Anita Bronson and broadcast on ITV from 1994 to 2000, which portrayed the activities of customs officers from Her Majesty's Customs and Excise. The series derived its name from the distinctive 'knock knock knock' command used over the radio to synchronise a raid.
Acting
Caroline Lee-Johnson anchors with steel and suppressed warmth.
Production
Authentic customs locations — pre-digital surveillance aesthetics hit different.
Writing
Case-of-the-week structure that actually builds character arcs.
Creator
Anita Bronson
Trivia, insights & behind the scenes
The series premiered during a real crackdown on drug importation through Dover, making it unexpectedly topical — customs officers reportedly used 'The Knock' as shorthand in actual operations.
Steve Toussaint (Barry) later played Lord Corlys Velaryon in House of the Dragon — from customs raids to dragon-riding in 28 years.