Here is an overview: The eldest son of the protagonist is, in parallel Earth (#1), a ruthless military leader who starts a future war that ends up destroying many, if not all, of the parallel Earths in 1993. Two "time police" are trying to stop him, and enlist the help of the father in an alternate Earth (#2) in 1977. The father, Edward Villiers, recently lost his wife and two of three children. His oldest surviving son (Chick) is the one that, in the alternate Earth (#1), becomes the fanatical political leader. Villiers is sent to another Earth (#3), with a slightly different timeline, where he meets his "wife" (also widowed) and his three "children". The hope is that he may do something in this Earth that will influence the oldest son in Earth #1. He is pretending to be an old friend of the wife's husband. They fall in love. However the oldest daughter also falls in love with Villiers. This makes Villiers determined to leave Earth #3. He summons the time police, renders them unconscious and steals their car (which can travel both through time and between the alternate Earths). He then goes to Earth #2, gets Chick, then both travel to Earth #1, but much earlier (1950's). There he meets a younger version of his wife, gets married and starts a family. At the very end of the 1960's, a radical starts stirring up trouble: his oldest son (Charles Treville) in this alternate Earth. A riot starts, the time police show up and try to assassinate Charles, and to save him Villiers and Chick grab him. They explain what is going on and then travel back in time the car and kill the two time police in the riot. They then shift to Earth #2 in 1978 and leave Charles there, then jump back to Earth #1. The last paragraph of the story takes place in 1993, past the date of the war, and all is well. At least, it seems to be.
Hmmm. Not sure where to begin. I am not a fan of either time-travel stories nor of alternate universes so I guess, at least for me, this story has a couple of strikes against it going in. The whole Earth #3 episode did not make a lot of sense and the scene where the "daughter" expresses her love for Villiers made me cringe. I also don't understand how anything he can do in this alternate Earth #3 would have any effect on Earth #1. Finally there is something else I can't figure out: Earth #1 Charles looks like Villiers younger son (who died in Earth #2), so much so that Charles recognizes both Villiers and Chick at the riot. In this Earth (#1), Villier's grandfather was assassinated by the time police and his grandmother married again, to a Treville. Villiers has already taken the mother out of the equation by marrying her in the 1950's. So the only common ancestor would be the paternal grandmother. Would 1/4 be enough for that close of a resemblance? And would 1/4 be enough for Charles to still turn into a maniacal political leader?
I'll include an interesting comment I saw in another thread:
Part of the craft of writing, stories or screen plays, is to get the reader or viewer engrossed in the plot and character instead of looking for nits to complain about.
(...)
I think if you manage to hook the reader early, the reader will gloss over minor and sometimes significant issues. Fail to hook the reader, and the reader will discover every flaw (and perhaps make up some more).
Heh, heh, I'm good at doing that last bit!