In A Small Town is a gritty thriller following the trials and tribulations of a small town cop who has a near death event accompanied with the realization his hometown is not what it seems.

'trials and tribulations' doesn't reflect the 'gritty' aspect of the set-up.

I don't think your logline says enough actually, as someone else said, its vague. Remember the goal of a well written logline is to prompt the reader to envision what you've written as a film. There has to be a protagonist, there has to be a protagonist's goal, and there has to be something(someone) preventing the antagonist from reaching his/her goal.

Very helpful advice, thanks very much.