Documentary series following the people working round the clock on Britain's longest and most iconic road as they strive to keep traffic moving and the public safe.
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A police chase leads to a major drugs bust, and two swans force the road to close.
Police are called to a major pile-up which threatens to close the road.
Traffic police in Scotland respond to an emergency with an overturned car.
An A1 patrol officer gets called to help a biker fighting for his life.
Police race to the scene of a head-on collision.
A horrific crash causes rush hour chaos on the Great North Road.
Traffic officers race to the scene of a treacherous blowout.
A lorry breakdown causes rush hour traffic chaos.
A truck breakdown at rush hour puts motorists' safety in jeopardy.
A runaway van causes gridlock when it careers down an embankment.
Will treacherous weather hamper an emergency road repair?
An illegal motorist is caught red-handed.
Police put the breaks on a van driver's DIY disaster.
Police take a motorist suspected of drink-driving off the A1.