Sounds interesting, Delaina M. Waldron! And great title! I like anthology movies! I think you did a nice job with your logline. Loglines for anthology movies are usually structured different than loglines for other movies.

I just have one suggestion. Add adjectives for "stories" and "small town." Like this: Five chilling stories set in an isolated small town about unlikely heroes trying to survive an Alien invasion.

It might be harder to survive an alien invasion in an isolated town where the heroes couldn't get help and supplies from the outside. I'm not sure if the town in your story is isolated though.