The Kazekage: Gaara, has gone missing. So, Konaha sent Grandma Chiyo, Kakashi, Sakura, and Naruto to find him. In which they did. And they found the Akastuki, who have already “killed” Gaara. Akastuki sent Sasori and Deidara to fight them. Sasori was killed, and Deidara was put in a different dimension for some time. You, an Akastuki memeber was sent for backup, you make it just when Deidara gets put in the dimension..