PrologueHaving been suddenly ambushed by dozens of villains, Thirteen and Eraserhead try to evacuate Class 1-A from the U.S.J. Kurogiri cuts off the class from the exit, and is attacked by Katsuki Bakugo and Eijiro Kirishima. Their attacks prove fruitless and Kurogiri uses his warping Quirk to separate the class and send them to the various simulation zones. 
Izuku Midoriya, Tsuyu Asui and Minoru Mineta are transported to the Shipwreck Zone. They are warped directly into the middle of the water, and Izuku immediately comes face to face with a villain trying to eat him. Before harm comes to Midoriya, Tsuyu swoops in and kicks the villain away. With Minoru already in tow, Tsuyu takes herself and Midoriya safely aboard the ship.Izuku and Tsuyu discuss the villain's plans and the current situation, but Minoru is too distraught to think rationally and cries for his life. Several villains arise from the water and surround the ship. Despite their perilous situation, Midoriya decides that he and his peers must fight back and be heroes.
Izuku's declaration only makes Minoru panic further.Izuku surmises that the villains are unaware of Class 1-A's Quirks. This small advantage is enough for Izuku to form a strategy around after he learns about his allies Quirks.
Tired of waiting for the students to act, a villain uses his water manipulation Quirk to break the ship a part. Minoru desperately uses his Pop Off Quirk to throw several purple spheres at the enemy. Izuku notices that the villain's are afraid to touch them, and decides to put his plan into action.Izuku leaps out of the ship above the villains and uses Delaware Smash on the surface of the water to make it spread out and collect rapidly back together. The converged water traps the villains a vortex mixed with Minoru's sticky spheres which keep them stuck to each other. With the villains defeated, Tsuyu uses her tongue to grab her comrades and escape the Shipwreck Zone.
After trapping all the villains in the water, Tsuyu leads her comrades out of the Shipwreck Zone. She congratulates Izuku on a job well done, and inquires about his injury. Izuku tells her not to worry, and moves on to discussing their next move. At first they want to try and make for the exit, but eventually decide to support their teacher Shota Aiazawa at the central plaza.