 A program of stepped-up enforcement reduces the accident rate on a new stretch of highway, but fast-driving salesman Harry Brent fails to heed several warnings. On the recommendation of Dan Mathews, the State DMV suspends Harry s license and his wife Clara begins driving him on his sales trips. Clara s cautious style of driving doesn t set well with Harry s impatient nature and the situation comes to a head when she is unable to drive after her glasses are accidentally broken at a roadside diner. Harry makes an impetuous decision to ignore the Highway Patrol s willingness to help and drive them on the rest of the trip himself, even though he has no driver s license. The decision has tragic consequences.