The last member of an ancient race must learn to once again trust humans. When a geeky teenage boy is the only chance to save everything she knows.

This is a promising concept, but I think it needs further development.

Does “ancient race” mean she’s not a homo sapiens? ?Is she a Neandertal? ?If so, I think that should be stated explicitly. ?And how can two different species communicate? (Or is she the last member of her tribe?)

And what is the inciting incident that causes their lives to intersect, that kicks off the action of the story? ?That should be in the logline.

And who is the protagonist, the woman or the geek trying to help the woman? ?Pick one for the purpose of the logline. ?If the female is the protagonist, than the geek is the ally character. ?If the geek is the protagonist, the female is the stakes character.