The literal translation of the title of this movie is: Time on Coral Island.
The film crew did a very lousy job on trying to change the true story in real life into something that it is not, and resulted in pathetic failure.
The true story this movie is based on is the failed former-USSR spy efforts to obtain Chinese research results on some high power battery, which was used to replace the original Soviet batteries in the Chinese weaponry of Soviet origin in the 1979 Sino-Vietnamese clash. The Vietnamese found out that in contrast to the data Soviet provided, the Chinese weaponry of Soviet origin worked much better than they should, such as less maintenance and long operational hours, so Soviet spies tried to obtain the battery once it was found out the longer operation hour and reduced maintenance was due to the new battery. (Original Soviet battery malfunctioned frequently, causing the systems that incorporate such batteries to fail frequently.)
The film crew did a poor job in switching the chemical components of the battery in real life into the atomic/radioactive components to be more dramatic, as well as making up some foolish claim of the thing can be use a weapon instead of power source, but such alteration of real life was not done well, and the movie should stick with the original story like Dong Fangjin or Lan Jing Jin Ji Chu Dong did, because accurate depiction of the failed former-Soviet spy attempt in those movie did well in box office, there was no need to make something more dramatic by faking it, especially when it can not be faked well.
