People join together and close a canyon

European mercenaries searching for black powder become embroiled in the defense of the Great Wall of China against a horde of monstrous creatures.

In 221 BC, Qin Shihuangdi conquered the rest of China. Qin's great accomplishments and also his serious faults are showed in this film. Qin adopted autocratic dictatorship and led a luxurious life: abolition of feudalism and the centralization of power in the form of a now-hereditary bureaucracy loyal to himself; burning books and burying scholars; the construction of a sumptuous palace for his concubines and also the Great Wall.

Gail and Tom Hartman are struggling to stay together and decide to take a white-water rafting holiday adventure in Montana for their son Roarke's 10th birthday, only to meet up with a pair of mysterious men whose desperation grows, turning their vacation into a nightmare.

After 5 people win a rafting trip down the Colorado in Utah, their adventure takes a deadly turn when they camp off the river for the night, and find out they aren't the only ones out in the remote rugged canyon lands.