In a distant future China has assumed control of most of the world by capitalizing on our sun disappearing. However, A young scientist discovers that the sun problem can be solved, thus initiating another World War.

The fudging of the science does make it a bit hard to grasp for me but there is promise here I feel. You mentioned in a post the sun explodes? Maybe it should implode to avoid vapourizing at least half of the solar system? Could you word it something like..." China holds the world hostage by monopolizing a technology that protects the earth from a dying sun. Only one young and naive Australian scientist knows the secret but he must battle a Chinese assassin to get the secret into the right hands" My version is wordy and not spot on but maybe you get the gyst of what I'm trying to say. Good luck and good start! :)

Where is the scientist from?
Who fights in the war?
What is the scientist flaw? Is he alone? Does everyone believe him?

Thanks setting up a new one. I believe the irony is the fact that the card (no sun) china is relying on is no longer viable unless they take out the scientist. Basically china is in control but their control is threatened.