Split in Two!

Sanji, Zoro and Brook seek a samurai's torso while Chopper and the others endure a troublesome tantrum. The lab children are suffering withdrawals, and the man responsible happens to be Law's next target. A Straw Hat and Heart Pirate alliance is in order! But their gaseous nemesis takes the wind from their sails and sets a slime monster hot on their trails. Worst of all, there's a traitor in G-5.