Lowly council employee Sam Pinkett is the sole witness to a shocking car accident. Answering a ringing mobile phone which he finds at the crash site.
Nick Stevens is heavily in debt to Mr. Lau, a local underground casino boss who has now kidnapped his wife Scarlett.
When Lau shows up at the council offices, Sam successfully negotiates the safe handover of Scarlett in exchange for Lau's nephew Jason. But Phil has his own ideas and nearly scuppers the plan.
The devious Scarlett sends Sam and Phil on a mission to retrieve a music box, which has fallen into the hands of eccentric Russian exile Marat Milankovic.
Having agreed to take care of the hunted and wounded Marat, Sam and Phil return back to Phil's house where his mum Linda proves surprisingly resourceful.
After somehow managing a daring escape from their would-be captors, Sam and Phil are now on the run, on the edge, and on each other's nerves.
James Corden
Phil
Mathew Baynton
Sam
Sarah Solemani
Lizzie
Dawn French
Linda
Dougray Scott
Walker