In the 262nd year of the Canglong calendar, the greenhouse effect continued to worsen, the Arctic and Antarctic glaciers melted rapidly, and sea levels rose, submerging many coastal countries. As the ocean temperature warms up, some ancient behemoths sleeping deep under the sea wake up, plunder human territory, and go to war with humans. Humanity is facing a life and death crisis. On January 1, 263 of the Canglong calendar, the first day of the new year, the tenth-level sea beast "Taotie" landed on the last land of mankind - the Kingdom of Apocalypse. The Canglong Squadron, the most elite mecha team of the Apocalypse Kingdom, which killed the level 9 beast in the northern border, faced the "Taotie" under the leadership of General Chenfeng. On March 12, 263 in the Canglong calendar, the entire Canglong team was killed.
