A friend of Hammer's, Mei Ling, is kidnapped during a jewelry store robbery. The thieves were after a very valuable diamond. Mei is being held as ransom for the diamond and Hammer is asked to deliver the it. The swap goes wrong when the diamond Hammer is given is a fake. Then the jeweler is also kidnapped. There are many twists and turns before Hammer eventually finds out the real story of what happened.
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