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McGarrett Is Missing is the 7th episode of Season 8 in the original version of Hawaii Five-O

Synopsis
Raymond Parmel, a murderous former marine, claims to have the remains of Peking Man, the fossilized bones of prehistoric humans found in China in the 1930s that disappeared shortly after the attack on Pearl Harbor in 1941. McGarrett must deal both with him and with a professor who represents the government of the People's Republic of China, which wants to recover the bones as a Chinese national treasure, and doesn't care whether Parmel is captured or not.