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. Narrowly escaping, they pay a visit to Phil's mum Linda before taking Scarlett back to her husband. But it's not the happy reunion they imagined.

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. Armed only with the ransom money they found in the back of Walker's car, our heroes set off to buy it back. But with the vengeful Lau still seeking payback, Sam and Phil find themselves arriving empty-handed at a drug-fuelled house party.

Having agreed to take care of the hunted and wounded Marat, Sam and Phil return back to Phil's house where mum Linda proves surprisingly resourceful. But with spies shadowing their every move, our heroes inadvertently bring the dangerous plot right to their doorsteps, and ultimately to the council offices.

Sam and Phil are now on the run, on the edge, and on each other's nerves.