Serenity

In the 26th century, humanity has colonized a new solar system. The central planets formed the Alliance and won a war against the outer planet Independents who resisted joining the Alliance. Child genius River Tam is conditioned by Alliance scientists into becoming a psychic and an assassin but is rescued as a teenager by her brother Dr. Simon Tam. During her training, River inadvertently read the minds of several top government officials and learned their secrets. Consequently, an Alliance agent known only as the Operative is tasked with recapturing her.