Starting out with Simon (Sean Maher) rescuing his sister River (Summer Glau) from the Alliance only for the Alliance to send out a ruthless assassin simply known as the Operative (Chiwetel Ejiofor) to catch River any means necessary.
Simon and River are aided by rebel crew of the Serenity lead by Captain Mal Reynolds (Nathan Fillion). The crew includes second in command Zoe (Gina Torres) who also fought in the rebel alliance war along side Mal and married to the pilot Wash (Alan Tudyk) who is the guy who people go to for a decent heart to heart. Engineer Kaylee (Jewel Staite) who has a way with being able to fix all problems the ship encounters. Jayne (Adam Balwin) is the main tough guy figure who really is a bit of a softy.
After discovering River is a reader of minds Mal sets out on a job to rob a bank containing Alliance money but the carnivorous Reavers start arriving in the town leading to a spaceship race to escape from being eaten alive. After the escape River starts talking about Miranda and learning that this is a distant planet the crew of Serenity set of a dangerous mission to discover the truth. Meeting old friends Companion Inara (Monena Baccario), Shepherd Derrial Book (Ron Glass) and Mr Universe (David Krumholtz).
After Firefly the TV shows was cancelled and gained cult following Serenity was made, Almost like a follow up with chapters between missing like why Inara and Shep are no longer part of the crew. The story involving River more than the whole team. We still get to see how strong a captain Mal is showing all range of emotions from start to finish.
Joss Whedon brings us his take on space genre and his views are different to what we are used to including the no explosions in space and no aliens give this a more human almost realistic feel adding in the idea the words are not modern tech worlds rather old western like towns giving this the sci-fi western genre name.
Great story with twists and strong protagonist and villains giving this simply put under performer a bad name but can easily be considered as strong as the big name sci-fi Star Wars and Star Treks on a story line and character development basis.
If you do find you enjoy this movie i strongly recommend you try to see the fourteen episodes of Firefly and you will learn the love the characters even more.
My overall rating a brilliant sci-fi adventure 94%