Wonder Seven, a secret group of well-trained government agents in China, has been assigned a case of a computer disc robbery. At first everything seems to go smooth, when a disastrous national conspiracy unravels. Seven gets caught and are forced to strike back. Meanwhile, the leader of Seven, Yip, develops a forbidden romance with a mysterious Japanese lady...

Ninja Over the Great Wall takes place in the early nineteen-thirties when China was occupied by the Japanese imperial forces. Wa Chi Keung is a peasant who escaped the mass murder of his village by the Japanese. He joins his master in Bejing shortly before the old man's assassination by ninjas.