In the beginning, Mr Jones is quite cruel to the animals so they decide to plot a rebellion against him and the humans.
They decide to take over the farm and call it Animal farm where all the animals are equal and have to do the same amount of labour.
In the first steps of the book, Old Major passes away so the farm is taken into control by Snowball and Napoleon who both have an ongoing feud between themselves.
At first, the farm was supposed to be a communist place, but Napoleon, (who was supposed to be representing Karl Marx, a leader in Russia) decided to take advantage of his power and made sure that he was rich and he was the leader of the farm.
When the animals decide to make a windmill, Snowball and Napoleon carry on their argument pay having a feud whether to make it or not.