Episode 473 of One Piece traps the pirates as Marineford's great walls rise. Whitebeard levels John Giant and warps the sea with his quakes, yet Akainu answers by raining magma to melt the ice and seal off any route to Ace.
Whitebeard's arrival lifts his crew's spirits and they clear a road for him. He swats aside the Marine cannon fire and wrecks the guns, while the encircling walls fail to lock because the ice blocks them. A guilt-stricken Squard berates himself for being duped, and Marco gently asks whether crying can earn redemption. Luffy presses ahead with Jinbe and Ivankov, all of them sensing the Marines' retreat yet agreeing there is no turning back now that Whitebeard stands on the field.
Vice Admiral John Giant tries to stall, but Whitebeard blocks his strike and looses an enormous earthquake that tilts the whole bay. One blow fells the giant, and the resulting shockwave nearly reaches the scaffold before the three admirals brace it with Haki. When the walls finally seal, the pirates discover Little Oars Jr.'s collapsed body keeps a gap open, his blood weakening the mechanism. An impatient Sengoku unleashes Akainu, who hurls magma skyward so it can pour down and melt every escape.
Whitebeard deflects cannon fire, and the ice keeps the walls from rising fully. John Giant charges Whitebeard and is downed by a single quake-powered punch that the admirals must block with Haki. Jozu rallies the commanders to exploit the opening, and Sengoku pours all power into the walls. The pirates find Oars Jr.'s body still holds a gap, prompting Sengoku to order Akainu's Meteor Volcano to melt the ice.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

When I first decided to commit to watching One Piece seriously, I knew I was embarking on one of anime's longest and most beloved series. With over 100...
This installment adapts Chapter 564, pages 2 through 17. Debuting techniques include Whitebeard's Shima Yurashi and Gekishin quake attacks plus Akainu's Ryusei Kazan. The fandom source lists no specific anime-original additions for the episode. Oars Jr.'s lingering body becomes a grim symbol of resistance, marveled at by the pirates for still fighting even while unconscious.
Whitebeard levels Vice Admiral John Giant with a single quake-powered blow and blocks Marine cannon fire, but when the encircling walls finally seal, Sengoku unleashes Akainu to melt the ice and cut off any route to Ace.
When Vice Admiral John Giant tries to stall him, Whitebeard blocks the giant's strike and looses an enormous earthquake that fells him in a single blow, a shockwave so strong the three admirals must brace it with Haki.
The encircling walls fail to lock into place because the ice from Whitebeard's earlier seaquake blocks the mechanism, buying the pirates extra time.
Even after the walls seal, Little Oars Jr.'s collapsed body keeps a gap open, his blood weakening the mechanism enough that pirates can still see a way through.
Growing impatient as Little Oars Jr.'s body keeps a gap in the walls open, Sengoku unleashes Akainu, who hurls magma skyward so it can rain down and melt every remaining escape route.
Looking for more on The Encircling Walls Activated! The Whitebeard Pirates Backed into a Corner!? The One Piece Wiki on Fandom has a dedicated page with community notes.
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