Here Comes Sabo! The Boy at the Gray Terminal!

Luffy discovers the junkyard is named the Gray Terminal. Luffy runs after Ace when he steals the treasure and run into Sabo, a boy who lives there. Luffy discovers the stolen treasure and is tied up. Luffy screams and Porchemy, a member of the Bluejam Pirates, finds them. Luffy, Ace and Sabo escape, but Luffy is captured by Porchemy. Luffy is tortured into asking where the treasure is at, but he refuses to cooperate. Soon Sabo realizing that Luffy would not tell Porchemy about the treasure's whereabouts, Sabo and Ace break into Porchemy's hideout.