In the north-west of England, Sharon and Tony come across a broken-down vehicle on a high-speed slip road but on investigation it's not what it seems. After hitting a crash barrier, the driver has disappeared, and the car appears to contain illegal drugs. Up in the Pennines, an accident blackspot sees four cars collide, bringing the M62 to a stop, while on the M60 in Manchester a driver is left stunned and stranded when a wheel falls off her car