La Rochejaquelein, after halting his force on the main road a few hours, called upon the men to follow him to Caen; but only one thousand did so. On arriving at a village he learned that the bulk of the army, instead of being behind him, had marched towards Pontorson. He was therefore forced to retrace his steps and to follow them and, on overtaking them, found that they had already carried the bridge, driven away the enemy, and occupied the town.

The enemy were closing round them, but the capture of Pontorson deranged the plans of the Republicans. The place had been held by four thousand men and ten pieces of cannon and, as it could be approached only by a narrow defile, it was believed that it would be impossible for the Vendeans to force their way into it. However, after three hours' fighting, their desperate valour won the day, and the Republicans were routed, with the loss of most of their cannon.

The affair, indeed, appeared to the peasants to be a miracle granted in their favour; and with renewed heart they marched the next night to Dol. Kleber was with a large force in this neighbourhood, but the impetuosity of Westermann again upset his plans. As soon as the latter heard that Pontorson had been carried by the Vendeans, and that they had marched to Dol, he pursued them with three thousand infantry, two hundred cavalry, and four cannon. He arrived within a short distance of Dol at six in the evening and, without waiting for the infantry to come up, charged into the town, and for a moment spread confusion among the Vendeans.

They, however, soon recovered from their surprise, and drove the enemy out with loss. Westermann's infantry took no part in the action. Kleber was occupied in closing every route by which the Vendeans could leave Dol; but Westermann, who had held no communication with him, and knew nothing of his plans, marched with Marigny's division, with six thousand men, to attack the town.

This he did at two o'clock in the morning. The Vendeans at once rushed to meet them, and first tried to turn the right; but they failed here, and also in an attack on the left. They fought, however, so fiercely that Westermann withdrew his troops to the position that they had occupied before attacking. The Vendeans, however, gave them no time to form in order of battle but, heralding their charge with a heavy musketry fire, rushed down upon them. The enemy at once broke and, leaving their cannon behind them, continued their flight till they reached Pontorson.

In the meantime Marceau was advancing with his division by another road; and the Vendeans, hearing this, ceased their pursuit of Westermann's routed division and moved against him and, at four o'clock in the morning, attacked him when within a league of Dol. A combat ensued that lasted for three hours. The Vendeans then drew off, on learning that the division of Muller was on the point of joining that of Marceau.

Together these divisions could have forced their way into Dol, but Muller was hopelessly drunk and, being the senior officer, the greatest confusion arose and, had the Vendeans known what was taking place, they could have gained a decisive victory.

Marceau, seeing that he could do nothing to restore order, rode at full speed to Kleber's headquarters; and at daybreak the two generals arrived at the spot, and found the two divisions mingled in supreme disorder, the brigades and battalions being mixed up together. Finding that nothing could be done with them, there, Kleber drew them off; their confusion being almost converted into a rout, by the fire of about a hundred Vendeans. A council of war was held, and eighteen hundred men, with two guns, were sent to Pontorson to join Westermann's defeated division.