In the parallel world "Blue Star", the mysterious "National Fortune Delta" phenomenon has come to the world. Countries send special operations teams into real-life battlefields based on the rules of the game "Operation Delta", and compete for national points by evacuation of the value of the items they carry. The points leader will receive resource and technology rewards, while the bottom player will be punished by the national fortune. Due to continuous setbacks, Longguo's points were on the verge of returning to zero, and it faced the crisis of national luck mortgage.
Former professional player Lin Ling accidentally traveled to this world and became a member of the 13th team of the Dragon Kingdom. Form a team with the tactical genius girl Bai Li, fighting expert Lei Hao, and technical geek Chen Wen. Starting from the "Rat Team" that lacks equipment and is ridiculed by others, they use non-mainstream tactics in the game to survive on the battlefield.
As they made thrilling evacuation operations one after another, they gradually discovered the huge conspiracy behind the Dragon Kingdom's predicament: high-level traitors, the ambitions of the multinational military company Hafke Group, the secret manipulation of the mysterious mercenary organization "Fox Shadow", and the Asara organization that guards the ancient secret "Heart of Africa". All forces compete around the legendary red item-the "Heart of Africa".
