well naruto and sasuke are working together to 'save the world'....
A mysterious group of ninja makes a surprise attack on the Konohagakure, which almost destroys it. The nightmare of another Ninja World War could become a reality. Sasuke, who's still a missing ninja from Konoha, appears for the second time in front of Naruto at an unknown location to help prevent it from coming to fruition.
Well that's the summary from wikipedia so.....yeah (i think kakashi's going to be in it! i cant wait now!!)