Clouds, waves and warships gallop. At the end of October, in a certain area of the South China Sea, a naval frigate detachment organized the fleet to carry out multi course training. "Find the 'enemy' submarine!" With the release of the "enemy situation", the battle alarm suddenly sounded. The officers and soldiers rushed to the battle position in an emergency, all weapon systems turned to combat status, and the ship formation quickly headed for the target sea area. During the formation maneuver, the anti submarine department deployed sonar according to the command, and the shipborne helicopter immediately launched to search the relevant sea area. In the battle command room of the warship, the password sound and keyboard tapping sound keep rising one after another, and the battle positions are tense and orderly. "Found the metal echo!" The ship and aircraft cooperated closely and soon found the target track. The "enemy" submarine shall take measures to avoid the danger immediately after smelling it. However, it was too late. Ships and aircraft sharing information in real time soon formed an encirclement and decisively attacked the target. The "enemy situation" is constant, and dangerous situations emerge one after another. After the submarine search and attack drill is completed, one of the formation ships is suddenly attacked by the "enemy" and loses power. Other ships immediately start rescue and implement ship towing. During the drill, in the face of danger such as personnel falling into the water, water entering the ship, and cabin fire, each ship participated in the training to react quickly, and put into action to rescue the personnel falling into the water, plug the leakage and drain water, and extinguish the fire with damaged pipes. During the 6-day sea training, the formation has been chopping waves all the way and fighting real battles all the way. It has carried out a number of training courses such as comprehensive attack and defense, submarine warfare, navigation supply, and shipborne helicopter takeoff and landing, which has tempered its ability to organize, command, and coordinate operations. (The officers and soldiers calmly responded to the "enemy situation".)