Roadblock

With the British line  deployed  , it lost no time in advancing to assault the French position, abatis and artillery fire or not.

Soon the rolling volleys and the persistent popping of the irregulars started to have an effect. The Highlanders attempted to storm the enemy battery but were forced to retreat and reform. 

(Click photo for a larger version)
The British battery was soon deployed and an artillery duel began. French musketry and cannon fire cut swathes in the British line but it didn't stop them until they came to the abatis. This tangle of fallen trees with many sharpened branches was a formidable barrier. 

On the far right of the British line, some Acadians and Mi'kmaq warriors worked their way around the British flank but maintained their cover on the wooded hill, trading shots with Gorham's Rangers with little effect. The British artillery soon deployed and an artillery duel began while the British infantry in the open trading fire with the smaller number of French and Acadians behind the logs in the abatis.

With the sun sinking slowing, General Turner had two choices left, pullback, camp, and try again the next day, hoping the French would retreat during the night and not be reinforced, or try one last assault to break the French right wing, forcing their army to retreat. His force was still stronger despite their heavy losses, and they were trained to use their bayonets for assaults unlike the militia and tribesmen. 

The order went out for an assault and while the charges were repelled by the French regulars (esp Ogilvy's Jacobites in dark blue), the Acadiens by the river, who had suffered from the musket fire and were not equipped for close combat, broke to the rear. This allowed the Royal Americans, (60th foot), to wheel and flank Ogilvy's who had already taken heavy casualties. They had no choice and were forced to retreat. At the same time, the remaining Highlanders stormed the French artillery and opened the road.
 

There was no hope for the remaining French, they quickly retreated to the safety of the woods.