Shocked at Ace's death, the pirates rescue Luffy and retreat. Whitebeard uses the last bit of his strength to take down the sailors. That's when the crew led by "Blackbeard" Teach attack.
After using his title as one of the Seven Warlords of the Sea to get the worst criminals out of Impel Down, Blackbeard sets his sights on Whitebeard. The Emperor is severely wounded by Blackbeard's attack, and his last words before he dies are "Gold Roger's lost treasure exists."
Sengoku faces off with Blackbeard. The pirates continue their fight with the marines after losing Whitebeard and Ace. A sailor risks his life to stop the fighting on the chaotic battlefield, and, as if in answer, "Red-Haired" Shanks of the Four Emperors appears.