The Enemy of the Byakugan

Naruto, Tenten, Neji and Lee continue their mission to stop Raiga and save the Rourusuke Family. They try to work out a plan but the thick fog makes it difficult for them to see. Even Neji's Byakugan doesn't seem to help. Lee fights Raiga and manages to knock a bag off his back. What is this bag and what is inside it that seems so important? Meanwhile Naruto steps up to battle Raiga. Will he be able to defeat him?