When a pizza delivery driver is shot dead in south London, a tenacious detective goes after the people traffickers behind his murder and unravels a conspiracy that goes to the top.

Carey Mulligan, Vineeta Rishi, Rob Jarvis, Nathaniel Martello-White, Ben Miles, John Simm, Billie Piper, Hayley Squires, Nicola Duffett, George Georgiou, Ahd, July Namir, Jeany Spark, Robert Portal, Orla Brady, Nicola Walker, Kae Alexander, Nick Mohammed, Saskia Reeves