Bristol paramedic Wingnut heads out into the countryside where two riders are in trouble, but finding them is a bit of a problem. Meanwhile in Cornwall, Rob has to deal with the driver of a bulldozer who has broken his ankle so badly it may need to be amputated if it is not fixed promptly. In Essex, biker cop Ackers unveils his squad's latest weapon to combat speeding drivers, and what looks at first like a routine stop for his boss Nick turns into something else entirely