When "Desperate Line of Defense" turned into a torrent of data on the night of server shutdown, professional player Su Chen traveled to the dangerous ancient times where two moons hung in the sky. Here giant trees tower into the sky, monsters run rampant, and primitive tribes struggle to survive under the shadow of the blood moon tide.
In a desperate situation, Su Chen found that the summoning rings of four accounts and sixty full-level characters in the game were imprinted on his left wrist. Firearms, armor, vehicles - never wear out, unlimited ammunition. However, the power of the "Ark Fragments" from the game has also attracted the terrifying attention of the world: the awakened Hive Mother is driving the beast tide, the Blood Claw tribe that worships destruction is brewing blood sacrifices, and the other "Fragment" holders scattered around are all dangerous beings intent on reshaping the world.
The countdown has begun. Su Chen must use gunfire and steel to build a steel defense line on the ruins of the Shadowfang tribe within a month, unite his allies, and uncover the mystery of the fragments. What he faces is not only the ancient fangs, but also an ultimate survival war that crosses the world barrier and determines the fate of two time and space.
Either keep it all or lose it all.