The animals are gathering to listen to Old Majors recent dream. He tells them that they should overthrow Mr. Jones, a farmer who is mostly drunk and rarely feeds the animals and whips them.
One night, Mr. Jones forgets to feed the animals for a whole day and the animals are angry. As Mr. Jones whips them they fight back and Mr. Jones runs away while the animals celebrate because the farm is theirs.
Mr. Jones and some more farmers try to take back Animal Farm. When they arrive Snowball and the smaller animals attack them. A bird poops on Mr. Jones head and he shoots a sheep. Boxer knocks out a young boy and Snowball assures him not to feel guilty. Mr Jones flee with his men and the animals win again
Snowball is banished from the farm after his plan to build a windmill is shot down by Napolean. Snowball is chased off the farm by Napoleans trained dogs. After Napolean builds the windmill claiming it as his own idea. Boxer is manipulated by the pig along with the rest of the animals. The windmill is built but soon knocked down in a windy storm. Snowball is blamed for this.
Get out! Get Out! They are bringing you to your death!
Boxer is injured in a battle. During work later he falls. Benjamin and Clover stand by him as other animals find Napolean to help. Napolean gets a truck at the farm and says its for a human hospital. When Boxer gets in Benjamin realizes that the truck is going to taking Boxer to a slaughter house. It is to late and the truck leaves. The next day Napolean makes a speech about Boxer and calms the animals about his death.
Napolean and the other pigs come to the farm one day standing on their hind legs carrying whips. They change the rule to 4 legs good 2 legs better. They start wearing human clothes. The animals look in the farmhouse window to find the other farmers playing poker with Napolean. They can't tell if Napolean is human or pig.