And just so you can plan accordingly (and make sure you're ion front of the tube during your favorite episodes), here's a handy dandy guide for you with episode descriptions and times-
Episode 1: SerenityWednesday July 4 at 8:00 AM (ET/PT)In this original pilot episode, the crew transports passengers to another planet to sell salvaged goods only to discover that an undercover Alliance agent is on board the Serenity. The crew heads off to the rim worlds after picking up three passengers: Book, Simon, and Dobson.The festivities begin at 8am eastern and run all the way through till the final episode wraps up at 11pm. Science airs on channel 111 on Time Warner cable in NY- check your local listings.
Episode 2: The Train JobWednesday, July 4 at 10:00 AM (ET/PT)Serenity continues to travel through space conducting illegal runs across the star system, which is under the control of the Alliance. A powerful and fearsome mobster named Adelei Niska demands that the crew of Serenity pull a train robbery. The train is carrying medical supplies for a community, and Mal and Zoe get held on suspicion.
Episode 3: BushwhackedWednesday, July 4 at 11:00 AM (ET/PT)On a salvage mission aboard a drifting colony ship, the Serenity crew finds signs that the crew of the deserted ship was killed by the cannibalistic Reavers. They find one survivor, however things take a turn for the worse when an Alliance ship, looking for an unspecified Firefly-class ship with brother-and-sister stowaways, shows up and takes them in.
Episode 4: ShindigWednesday, July 4 at 12:00 AM (ET/PT)On the planet Persephone, the crew is contacted by their old "friend" Badger, the ruthless crime lord, to transport some goods on behalf of a local lord. While at a ball to arrange a transport job with the lord, Mal defends Inara's honor when her current customer insults her. By local custom, he unintentionally challenges her date, Atherton Wing, to a duel.
Episode 5: SafeWednesday, July 4 at 1:00 PM (ET/PT)Mal must choose which crew members to save when one is gravely wounded and two others are kidnapped. Simon finds an uneasy haven in a remote village, but River's uncanny perceptions jeopardize the Tams' temporary safety. Simon is kidnapped by locals who need a doctor, while River is threatened with burning as a witch.
Episode 6: Our Mrs. ReynoldsWednesday, July 4 at 2:00 PM (ET/PT)While completing a job on a backwater world, Mal is married to a village girl without his knowledge. The girl, Saffron, gets onboard and the crew does not find her until they're already in the air. Mal is not sure what to do with her, but let her come along.
Episode 7: JaynestownWednesday, July 4 at 3:00 PM (ET/PT)The Serenity crew pulls a job in a town where Jayne once made some friends and few lifelong enemies. Meanwhile, Kaylee and Simon dance, River rewrites Book's bible, and Inara beds the magistrate's son, a virgin.
Episode 8: Out of GasWednesday, July 4 at 4:00 PM (ET/PT)Following Serenity’s engine explosion, the crew is left with only hours of oxygen. In a delirious state, draining the ship of its oxygen supply, Mal has a series of flashbacks about how he came to own Serenity and form his crew.
Episode 9: ArielWednesday, July 4 at 5:00 PM (ET/PT)On return to Ariel, Simon hires the crew out to smuggle River into a hospital so Simon can figure out what the Alliance did to her. The plan goes off without a hitch - that is, until the Alliance catches wind of the Tam siblings' presence on the planet.
Episode 10: War StoriesWednesday, July 4 at 6:00 PM (ET/PT)Jealous of Zoe's relationship with Mal, Wash insists that he go with Mal to try to sell some of the medical supplies the crew stole from the Alliance. In the middle of the deal, Mal and Wash are kidnapped by men working for Niska, the crime lord, who wants revenge against Mal for the botched train heist. Meanwhile, Inara extends her services to a council member. To the crew's surprise, it's a woman. And Simon continues to treat River with some of the medicine he stole, but she suffers the occasional relapse.
Episode 11: TrashWednesday, July 4 at 7:00 PM (ET/PT)Saffron (from "Our Mrs. Reynolds") returns - after Mal breaks up her current gig, she convinces him and the crew to help out with a "perfect crime" that isn't. The crime: go to Bellerophon and steal a criminal's prototype laser gun from his collection. The plan: Saffron and Mal sneak in and dump the gun down the trash, bypassing security, and the Serenity crew grabs it from the disposal system.
Episode 12: The MessageWednesday, July 4 at 8:00 PM (ET/PT)An old war comrade of Mal's and Zoe's, Tracey, mails his corpse to them. He also leaves a message asking them to deliver his body to his family. Some men, claiming to be with the Alliance, are on the trail of the body and catch up to them demanding the corpse. The crew can't find anything on Tracey's corpse, but as they prepare to cut it open, Tracey comes back to life. He explains he is smuggling super-organs in his own body.
Episode 13: Heart of GoldWednesday, July 4 at 9:00 PM (ET/PT)The Serenity goes to the moon of Deadwood to answer a distress call from Inara's old friend, who runs a brothel. The Serenity crew defends a bordello from a gunslinger, who got a prostitute pregnant and now intends to collect the child; Mal falls for the bordello's madam.
Episode 14: Objects in SpaceWednesday, July 4 at 10:00 PM (ET/PT)Serenity encounters a ruthlessly professional bounty hunter, Jubal Early, who will stop at nothing to retrieve River. But River, feeling unwelcome on the ship, takes a novel approach to escaping from the long arm of the Alliance.