SxS - Serenity

Picking up where Firefly (2002) left off, the crew of the Serenity find themselves in grave danger, as the Alliance has sent their top assassin to retrieve the vessel's most precious cargo: River Tam. For over a year, the team has been struggling to stay one step ahead of them; however, this time, the stakes are raised, and the lives of everyone involved are in jeopardy, as the pitiless killer will stop at nothing to get her back. Now, as the bodies start piling up, the crew of the Serenity has only one option: find out what makes River Tam so valuable, and so dangerous, to have a fighting chance.