Eiyû no ita kuni Naruto : Season 4 Episode 11

Sakura goes into town with Tazuna and sees the hardships that the people of the Land of Waves suffer under Gato's rule. This is the reason Tazuna is risking his life to build a bridge that crosses the ocean. With a bridge that gives everyone access to other lands, people will no longer have to rely on Gato, who controls all imports. Meanwhile, Naruto and Sasuke continue to train, using chakra to climb a tree.