Tập 1887: Dokutake ninjas train for their navy while Shibuki and Ibuki deliver a bento to Captain Tatsumaki.

1887

The Dokutake ninjas are training deep in the mountains to establish the Dokutake Navy. Shibuki, together with Ibuki, sets out to deliver a bento to his father Captain Tatsumaki. However, they are spotted by Rantarou, Kirimaru, and Shinbei on the way... (Source: Nintama Rantarou Wiki)