Years after the great shinobi war, Naruto is struck with a mysterious illness. Desperate for a cure, Sasuke and Sakura undertake a dangerous undercover mission in the distant Land of Redaku. Together they discover a plan that goes beyond life and death, and a battle that will test this husband-and-wife team till death do they part.

Sasuke Uchiha heads for the isolationist land of Redaku, where he'll need to infiltrate an astronomical observatory that's being operated as a prison for deadly criminals. There he rendezvouses with none other than his wife, Sakura, and together they dive into an undercover investigation in search of traces of the Sage of Six Paths! With danger lurking around every corner, what fate will lie in store for the ninja couple?