Sezon 4

Asuma and Shikamaru have to think on their feet as they face the mind-boggling jutsu of the Akatsuki pair, Hidan and Kakuzu. At the last minute, the Akatsuki are called away, but not before dealing a fatal blow to a revered shinobi of the Leaf. The devastated ninja left behind can think only of revenge, but Tsunade is opposed to the scheme until an offer of help arrives from an unexpected source.