Ivy Walker (The Village)
People hate on this movie, but Ivy is a solid heroine without even realizing it. She’s incredibly kind and takes special care with the developmentally-disabled Noah. When Noah tries to kill Ivy out of jealousy (the whole situation is sad and nuanced), she fights back and successfully kills him while being completely naive to the fact that he is a human and not a horrible monster. She escapes, gets medicine for Lucius, brings it back… and does all of this as a blind woman without access to any modern science.