Naruto Shippūden: Season 20, Episode 454

20 - 454: Itachi's Story - Light and Darkness: Shisui's Request

Itachi accompanies his friend Shisui on a three-part training exercise. The two come across a battle between the Hokage’s ANBU and the Foundation. Itachi is confused by their motives and can't discern which side is right or wrong. But Shisui is unwavering in his determination to stop the fighting.