A sea dragon moves through the surface of the ocean water with enough force for its wake to rock the ship. It slowly raises itself up out of the water and is immediately seen by Blake Belladonna and a crew member in the crow's nest who sends out the alert. Another crew member goes running while the Captain and First Mate move out to take a closer look.
The sea dragon roars at the boat and the captain orders all hands to battle stations. Blake goes into action; with a forward flip she runs across the ship and onto the railing to give herself momentum. As she springs into the air, she uses her Semblance to create a clone in order to gain additional momentum for height. She casts out Gambol Shroud on its ribbon and the sharp edge of the sheath embeds into the front of the sea dragon's neck.
Anchored, Blake swings from the Grimm's neck into the air above its head where she then releases the Grimm's neck to pull her weapon back. Blake fires at the sea dragon with the pistol, striking several blows into its left cheek. It roars and moves at speed, Blake jumping off with her weapon to land back on the ship's deck.
The captain turns the ship hard to starboard, causing the Grimm to not make contact as it attempting a frontal attack. The captain re-stabilizes the ship while the sea dragon goes into the water. He comes out to watch for it when it comes up again on the other side. Blake jumps onto the crow's nest and fires at it again while it merely continues its encircling and goes back into the water.
The sea dragon turns to fight the ship again while its cannons emerge from its sides. Blake leaps up and hacks at the Grimm's nose. Her ribbon wraps around the tip to give her ground, but when the ship opens fire, Blake loses it and falls backward. She lands on her shoulders on the ship's deck and regains enough control as she bounces to end up in a crouch with one leg out and one knee bent. However, she cries out in pain and clutches her left shoulder when she moves to stand.
The captain orders that their heavy cannon be loaded and it emerges onto the deck from a trapdoor.
The sea dragon unfolds its wings out from between its dorsal fins and takes flight with another roar, deliberately creating a force of air with its motions. Atop the deck, even crouched, Blake is pushed backward.
The heavy cannon fires on the sea dragon, but it easily evades. Aiming right at Blake on the ship, it opens its mouth and charges an electric ball. At this point, using the injured Blake's good shoulder as a springboard, Sun Wukong leaps into the air between them. Striking his cross-legged meditation pose, Sun casts out two of his clones. They each grab a tendril and pull back the sea dragon's head while Sun lands on its nose and grabs hold of its upper lip. The lightning blast is successfully directed away from the ship.
After his clones disappear, Sun is holding both tendrils and riding the sea dragon, which is flying through the air. It charges another electric ball and gives its head an upward jerk, dislodging Sun. Sun falls with a cry and Blake uses Gambol Shroud to swing around the crow's nest and catch him midair. They land on nearby rocks.
The sea dragon blasts the ship, taking out the starboard artillery. The crew assesses the rest of the damage for the captain, informing him that the heavy cannon is still up but cannot land a hit on the sea dragon while the creature is moving so fast. The captain confirms with the first mate that the engines are still functional and settles on a plan.
Blake casts herself between the sea dragon and the ship, ready to fend off its next electric blast. Sun, however, puts himself between her and it, using Ruyi Bang and Jingu Bang to interfere with the effectiveness of the blast. He lands on the heavy cannon and the captain calls out his plan. He wants them to clip its wings and draw it out towards the bow. Sun lets Blake do the wing-clipping while he decides to play target.
They start with him casting three clones and jumping into the air. Blake jumps on the first clone, and it helps to push her upward. The second clone, still spinning, uses its feet to kick her upward. The third grabs her by the arm and propels her upward. Sun waits midair to toss her higher, but Blake instead lands her feet on both his shoulders and uses him as a springboard.
High in the air above the dragon, Blake lets herself fall head first, twisting to avoid the blasts it sends her way. She slices through the membrane of its right wing as she runs down its body. On the rocky precipices below, Sun catches her, the force of the impact causing the rocks to crack around them.
The rocks are further destabilized as the dragon flies through and rams them. Blake and Sun leap about some more leading it back toward the ship. It follows first Blake, then Sun. It almost catches Sun in its mouth, but Blake swings in save him. They land on a tall protruding rock and the dragon readies for another blast, seeing them successfully cornered.
Its body is immediately rammed by the ship, the bowsprit piercing completely through its body and holding it in place. The captain orders the heavy cannon to fire and the Grimm is decapitated along with a significant part of its neck. The remaining part of the body collapses as far as it can before disintegrating in sizzling black clouds.