When Lucy, Susan, and Peter defeated the witch, Ginarrbrik, got the witches stick, repaired it, and revived the witch in the forest.
Later the witch went to her caslte to plan some revenge on Aslan. She made the land snow again because of her magic. She got guards, soilders, and gear to fight them and defeat them once and for all.
The witch and her soilders then go to Aslan's kingdom to destroy them so they can rule Narnia once again. But the kids and Aslan were at Tumnus's house getting ready to fight.
When Lucy, Susan, and Peter, leave Mr. Tumnus's house, they go to find Aslan to prepare for war with their armor and weapons.
The witch and her army then found Lucy, Susan, Peter, Aslan, and their army and then went to war again. The witch wanted to rule the world and The other side wanted world peace.
After the war, the only survivors were Lucy, Susan, Peter, Aslan, and their soilders. They started celebreating and dancing of happiness. Then the world changed into grassy areas and there was no snow anywhere.