RE: It’s 2151 and a bio scientist finds herself in the middle of the largest coverup in history. She begins a race against time to expose her former CEO’s deceit or else mankind changes forever.
I have a problem with the wording of your logline. The story sounds interesting, but “the largest coverup in history” is too generic to get us excited for your main character. Replace this sentence with a more detailed and visual description like “In 2151, when the whole world is contaminated and uninhabitable, a bio scientist…”
Also, give us a better outlook of your mid-point: “or else mankind changes forever” is pretty basic and can mean anything, even in a positive way. Try to find a better way in communicating it. Don’t use “deceit” for the CEO, maybe go with “the CEO’s responsibility”. He should be directly involved and responsible for this catastrophy if you want him to be the main antagonistic force in your story.