How does this sound for a story line for my book?
The main character lives in 1939, the book is written in a series of journal entries, the journal entries change time-line as important events happen, although these two time-lines are completely separate even though we can see that one is simply the future of the other. We see the character working at a factory which begins building weapons to fuel the war and as less and less people show up for work he gets suspicious, the journal entries get more spaced out and next we hear after a whole week of no entries is that the factory has closed down.
Here the time-line shifts and we see him in his future, the town he lived in is now utterly destroyed and he has no memory of his past aside from his journals, which he doesn't have all of. He only remembers the last 2 months, (This time-line is 2 years ahead of the other, in 1941) He knows that when the Germans planned to invade in 1940, the British were informed and began developing experimental weapons and then something happened and almost 3/4 of the earth's populace was killed in the event know as "Project Cataclysm".
The Timeline shifts again and we see the character re-entering the recently opened factory (after being closed for two weeks) and is offered to have an experimental procedure done on him so that he can have a better job, he refuses for 3 days and then the realisation that he has nothing to lose, coupled with starvation, change his mind and he has the procedure done. The timeline shifts again and we see him in an underground colony of humans who are sheltering from the lethal 'catalyst' gas which the factory has leaked. They have been exposed to non-lethal doses and there have been two known effects, the gas works as a gene splicer and some gained minor telekinesis (enough to lift a small rock and at most, a bag of flour) and the others have become grotesque mutations who live separate from the primitive society which has formed in the lack of civilization. The kinetics thinks themselves higher than the mutations and the mutations are killed on sight and hunted by the kinetics. He then see half of his family have become kinetics and the other half have mutated. He feels regret.
So the story continues, but basically, himself in the future is trying to find a way to resolve the problem, and himself in the past is continuing on his path, as his future self continues he finds his old diaries (ones that we haven't read yet) and we see his dark side, we see that he was always an angry person, but he kept it pent up (he is never seen socialising in his past self) and something that happens that makes him snap (not yet decided) and we see that it wasn't a weapon they were developing but cold fusion, a means of "free energy" that would end the war. and this event makes him snap and because of his implanted knowledge during the procedure, he weaponises the reactor slowly and sets it off. Upon reading this he gets depressed and eventually falls into insanity, writing less and less. He witnesses the war break out between the kinetics and mutants, the horrors of it drive him over the edge and he initializes the safety procedure on the reactor which he implemented and in doping this, the reactor releases a second gas, a neutraliser, which he devised as a failsafe and it neutralises the 'catalyst, and although the kinetics are now returned to normal, the mutants violent genetic shift kill them and as he sees his family die by his hand, he commits suicide.