Sub Genre analysis

SCI-FI Subgenres

Alternate history: 

Alternate history stories are set in a world in which history has taken a different course. Often, a single event is identified as the beginning of this change; the assassination of Hitler, for example.

The man in the high castle is a good example of this due to the completely different world that civilization is facing with the Nazis taking over practically the entire world after winning world war two and what the Nazis would have done and who they would have controlled once winning.

And Timeless is revolved around the idea of going back and alternating history for the greater good for there a current time period and to overall save history.

Parallel world:

Fiction concerning travel to parallel universes, in which the world is slightly different from our own. The theory of parallel universes that there is an infinite number of these alternate worlds. The traditional way to visit them is usually via a wormhole.

The first example is Counterpart, a TV series about an agent who discovers that there is a parallel dimension that is being hidden by government officials and it involves a character called Howard silk to take this secret organisation apart.

Another possible title is Fringe, a TV series about 

Dystopian fiction: