Covert security company Vanguard is the last hope of survival for an accountant after he is targeted by the world's deadliest mercenary organization.
When a mysterious monster rises from the Mekong River and attacks Bueng Kan, it cuts people off from the outside world. Officials and people in the area, including Chinese scientists who accidentally came to conduct research in Thailand, all forces must be mobilized to catch this crazy monster before it's too late.
