For many years the Greeks have been trying to get over the wall around the city of Troy.
The trojans "kidnapped" Helen and a 10 year war resulted
In the middle of the story these two city-states were going to war and one of them finally said they "surrender" but they did not, instead they built a wooden horse and put 30 soldiers in there as a"present".
They are now bringing in the wooden horse thinking it is a present but little do they know they are up to battle.
Now they have brought in the wooden horse and the soldiers came out to finish the Trojan war. And that was the end of the war.