When Sarutobi 3rd hokage hear the news of Attack on his village Hidden Leaf, He risk his everything to protect the village and spilts into two part to avoid the mass confrontation of enemy.

Hidden Leaf is under attack by akatsuki Leader Pain to capture the jinjuriki(Nine tail fox) but Pain is aware that the presence of hokage might slow him down so he send the summoning ninja to stop sarutobi the 3rd hokage.

Now you must help the sarutobi to reach the hidden leaf village and also to protect the village from the pain both part of the sarutobi must remain alive or there's no way he can win against the pain.