The return of the documentary following emergency patrol teams on the M1, beginning as the North East Control Team deal with a serious accident on the M18 near Doncaster during the Friday rush hour. Elsehwere, a driver is found dazed and confused on a motorway near Manchester, and dispatchers Liam and Chris in the North West control room must try to find his missing car, which has mysteriously vanished from the carriageway.
