Film Name Ideas and The Plot Overview

My film is going to be revolving around the sub genre sic-fi/horror in an apocalyptic event. So that would mean the name of the film needs to have a good relation to genre. This aspect is important, as it's what the target audience will most likely notice first about the magazine, and if it isn't up to scratch then this maybe be off putting, causing people to not even bother to check out the film further. So far I have come up with these possible names:

1)The Survivors
2)Survive
3)Abandoned
4)The Last 4
5)The London Apocalypse
6)2016 
7)The Humans and IT
8)Take it Down
9)Silent London
10)Empty Borough

At the moment, I'm leaning towards number 2 and number 4. Number 2 because it gives off an impression very easily as to what the film might be about to the audience, and to this specific audience, they may find themselves attracted to what this might imply in terms of a sci-fi/horror. I have also highly considered number 4 because if coupled with the movie poster it will make it obvious to the audience that this is an apocalyptic type of film. Also, it has a very appropriate ring to it, as it make sense if you coin it into relations of what happens in the plot.

Moving on to the plot, here is the general plot idea I have for my film:

"It's 2016 in London, and four teenagers find themselves to be the last survivors of an apocalyptic event. Everyone in the area has vanished, and it looks like they will have to find a way to get back their friends and family - or in other terms the human race. However, this won't be easy once they also find out that they must find a way to also survive against what must be the first flesh eating zombie. Will they be able to survive such an event? Or will they all be taken down one by one..."

I feel this is an appropriate type of plot for the type of genre I am trying to convey to my target audience. It has specific conventions of a sci-fi/horror film that they would be expecting to see and as many film plots shouldn't, it doesn't give away the ending.