At sea, during a storm, the Straw Hats spot the lighthouse signaling the way to the Grand Line. To celebrate, Sanji takes out a barrel as each of them take their place around it, and declare their vows and dreams.
Returning to the beginning of the special, the Straw Hat Pirates break open the barrel as a narration of their adventures yet to came is heard. During the credits images of their future crewmates, and Luffy's brothers are shown:
Although not directly stated, Zeff is implied to have eaten his own leg as in the manga. In the anime adaptations of the flashback in Episode 26 and Episode 801, the events were censored so that Zeff cuts off his leg when it gets caught in wreckage while diving to save Sanji. However, in Episode of East Blue, these scenes are not shown nor recalled by Sanji. Instead, Sanji simply leaves his sentence incomplete when he sees that Zeff has lost a leg, rather than explicitly asking if he ate it.