Goal
Akatsuki initially operate in the shadows, carrying out assassinations and espionage that draw little attention. Some members use their time with Akatsuki to further their own goals; Kakuzu, for example, joined because it makes it easier for him to collect bounties. Soon after the start of the series, however, Akatsuki becomes increasingly more active as its members start to carry out the tasks needed to achieve their ultimate goal: domination over the Naruto world. The leader, Pein, has created a three-step process to work their way towards this goal. First, they plan to obtain a large amount of money to support their organization. Second, they plan to set up a mercenary group loyal only to Akatsuki. To build their reputation, they plan to accept any mission below the usual cost and operate off of the excess funds earned in the first part of their plan. Because there haven't been any wars in some time, the established shinobi villages can't afford to charge such low prices, leading the smaller countries to hire Akatsuki over the more expensive shinobi villages. By using the tailed beasts, Akatsuki can start wars and then immediately quell them, solidifying their reputation and convincing every country to depend on them. Without any business, the other shinobi villages would collapse due to a lack of funds. Finally, after Akatsuki is the only major shinobi force in existence, they could easily conquer the other countries. Despite the severity of this plan, members do not automatically learn of it upon joining; Hidan did not find out about it until asking.
The tailed beasts, nine gigantic demons of immense power, are the focus of much of Akatsuki's effort and screen time within the series. Each Akatsuki member is assigned to capture alive one of the nine beasts or, in most cases, the person that beast has been sealed into. Akatsuki has so far obtained seven of the nine: the One-Tailed Shukaku, the Two-Tailed Demon Cat, the three-tailed beast, the four-tailed beast, and three others.
Once one of the demons has been captured it is taken to the nearest Akatsuki lair where the remaining members then assemble through astral projection. Pain summons a giant statue of a humanoid monster while the beast or its host is placed before it. The members then take their place on the finger of the statue that corresponds to their respective ring, and the group prepares to seal the beast into the statue. For the sealing, nine dragon-like effigies pour from the statue's mouth to surround the captured host, forcefully remove the tailed beast from them, and seal it into the statue. In the case of an unsealed tailed beast, the same thing happens to the beast itself. The sealing process takes three days to complete. Kisame Hoshigaki notes that the demons must be sealed in a specific order, as he states that sealing the Nine-Tailed Demon Fox before the other eight beasts would destroy the statue. Tobi, the character shown giving Pain orders, hints that the tailed beasts have a purpose beyond global conquest, implying that acquiring all nine would allow his Sharingan to return to full power. Pein, however, has different plans on using the tailed beasts, wishing to use them to create a weapon of mass destruction that will force the world to learn the pointlessness of fighting and try to achieve a sense of world peace.
