DIMENSION 5 …. 1966
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(Justin Power)  Jeff is a U.S. secret agent assigned to stop a Communist Chinese attempt to set off an atomic bomb in Los Angeles; he is aided by a female Chinese-American agent (France Nuyen). Time travel is their uncredited co-star in this James Bond-like film. Also starring Donald Woods and Harold Sakata.
 

Watch a scene from early in the film:

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