In the series, "Naruto Shippuden," the Five Kage Summit meetings are depicted as crucial gatherings of the five leaders of the major ninja villages: the Hokage of Konohagakure, the Kazekage of Sunagakure, the Mizukage of Kirigakure, the Raikage of Kumogakure, and the Tsuchikage of Iwagakure. These meetings serve as a platform for discussing important matters related to the shinobi world, such as alliances, threats, and strategies to maintain peace. The interactions between the different Kage and the decisions made during these summits have a significant impact on the overall plot of the series.