The Americans are fleeing from the British and end up getting pushed to New Jersey.
Due to being pushed so far back, the Americans have to make a choice. Either they attempt to find the boats and cross the river, or they end up surrendering to the British forces. They luckily find boats and end up crossing the river.
The Battle of Trenton
Washington explains how the Americans aren't safe for long and that the British can easily cross the river when it freezes over.
In the early morning of December 26th, 1776, Washington and his men cross the Delaware river once again to get to Trenton, New Jersey, where they knew the British would be at.
The Americans arrived at Trenton about eight in the morning. They surprise attacked on the British forces which most were asleep. All four British Colonels were killed during the battle.
After the battle concluded, they confirmed about twenty British troops dead, with the Americans having stats of only four injured. Washington's plan had been a success with it being the Americans first victory against the British.