In a bleak, shadowy world built out of letters, a small being made of type named HERO comes to life and sets off through a hostile landscape. His unique gift is the power of language itself: by gathering and arranging letters into words, he can reshape his surroundings, spelling "up" to raise a lift or "open" to unlock a path forward. As the challenges grow more devious, HERO must craft ever cleverer words to overcome the dark forces around him and press on through the oppressive world.