One Piece: Season 16, Episode 664

16 - 664: Operation SOP Starts! Usoland Charges Forth!

Usopp and Robin make their way via an underground tunnel dug by the tiny people of the Tontatta Tribe - a tunnel so small in fact, that Franky couldn't fit! Instead, Franky makes his way to the Toy House to find a way in there and hopeful cause a distraction to help his crewmates, but standing in his way is a pretty "hard boiled" guy!