Although a stand-alone story, this special leads into One Piece Film: Gold, with the both the special and film written by Tsutomu Kuroiwa.
Mad Treasure appeared in One Piece Film: Gold, and Film: Gold main antagonist, Gild Tesoro, appeared in this special.
During the final fight, Sanji battles Psycho P, the swordsman of the antagonist group. This is the second time Sanji fought the antagonist swordsman, the first being Heaby in the third movie.