Episode 40 - New Journey! Nami Joins the Straw Hat Crew

Episode 40
New Journey! Nami Joins the Straw Hat Crew
Japanese: 新たなる旅立ち！ナミ、麦わらの一味に加わる！
Aratanaru Tabidachi! Nami, Mugiwara no Ichimi ni Kuwaru!

The crew faces increasingly powerful enemies on the island. As they fight their way through various challenges, the crew bonds even more tightly. Their adventures lead them to uncover a new mystery about the Grand Line, and they realize that their journey is far from over.