Serenity continues the story of the TV series it was based upon ("Firefly"). River Tam had a secret - one in which she's not even aware - so dangerous, no one's safe, as an Alliance operative's ...

The show’s whip-smart dialogue and plot-driven story are the main attractions, along with the beloved cast ... of Firefly, the audience is thrust into the final stretch of the Battle of Serenity ...

Firefly creator Joss Whedon described Serenity as the show's 10th character. Like the Falcon, Serenity is more than a method of transport, taking its charismatic cast from one adventure to the next.