In Chapter 2 of Animal Farm, the aftermath of Old Major's death sets the stage for a monumental change on Manor Farm. The animals, inspired by Old Major's vision of a society free from human tyranny, begin to organize themselves into a cohesive unit. Led primarily by the pigs, particularly Napoleon and Snowball, they start to formulate plans for the rebellion they have been longing for.

The chapter opens with the animals grappling with their newfound ideas of rebellion and freedom. They hold secret meetings, where the principles of Animalism are discussed and solidified. The animals work together to prepare for the uprising, rallying around the idea that they can govern themselves and live harmoniously without humans.

With Mr. Jones increasingly neglectful and drunk, the animals find their moment to act. One fateful day, after being starved and mistreated, they rise up against Mr. Jones and his men. In a chaotic but vigorous battle, the animals manage to chase the humans off the farm, marking a significant victory for them. This moment is pivotal, as it symbolizes their first taste of freedom and the potential for a new life.

After the rebellion, the animals gather to celebrate their victory and to establish their new governance. They rename Manor Farm to Animal Farm, signifying their ownership of the land and their new identity as free beings. To guide their actions and ensure that all animals are treated equally, the pigs draft the Seven Commandments of Animalism. These commandments are intended to embody the principles of their new society, emphasizing equality among all animals and the rejection of human traits and behaviors.

The Seven Commandments are painted on the barn wall for all to see, serving as a constant reminder of their goals and ideals. The commandments include mandates such as 'All animals are equal' and prohibitions against engaging in human behaviors like sleeping in beds or drinking alcohol. However, the pigs, being the most intelligent animals, take on the role of leaders, tasked with the administration of the farm and the interpretation of these commandments.

As time goes on, the animals are filled with hope and optimism about their future. They work diligently to bring the farm to a new level of productivity and to ensure that the spirit of Animalism is upheld. However, subtle hints of power dynamics begin to emerge, especially as Napoleon and Snowball start to clash over differing visions for the farm's direction.

In summary, Chapter 2 encapsulates the exhilaration of the animals' successful revolt against their human oppressor, the establishment of Animal Farm, and the introduction of the Seven Commandments, while foreshadowing the power struggles to come among the pigs. The chapter sets the groundwork for the exploration of themes such as integrity, leadership, and the complexities of revolution.