PC Ed Clarke responds to a 999 call from a worried driver whois behind a van on the M6 that is all over the road and hasnearly collided with the central reservation. When Ed gets eyeson the vehicle, the dangerous driving is clear to see and abreathalyser test at twice the drink drive limit explainseverything. On the night shift, PCs Kara Pilarczyk and TomCordall pull over a delivery driver for not wearing hisseatbelt, but the man's evasive behaviour raises suspicions.