在五百年后的未来世界，由船长 Malcolm Reynolds (简称 Mal) 为首所率领的一艘没有家之太空船 Serenity于对抗联邦战争之后，在宇宙中飘流的冒险旅程。在太空船 Serenity 内一起生活的乘员及乘客，在穿梭於被联邦政府统治之星系中的同时，亦要在行星的边疆之间开闢新天地。不论是合法或非法，各乘员为了生存而需要接受任何的工作，而船内的每一个乘客原来也各怀鬼胎及动机，因此这班拥有著不同的过去，以及不同原因上船的傢伙们将需要在达到目的之前，各自隐藏著自已原有的身份。为了逃避联邦政府的追踪，Serenity 与它的乘员唯有前往许多荒无的疆界行星，亦因为这个原故，当他们面对各种挑战及困境之时，将会採用像西部牛仔般的作风去解决。FIREFLY 所谈及的是他们变化莫测的生活与关係，并於难以预料的环境下寻找著他们自已的生存意义。
播出日期: 2002-09-20
运行时间: 43 min
概述: The crew of Serenity take on a train heist commissioned by a crime lord. They steal the goods, only to find it is medicine that's desperately needed by the town.
播出日期: 2002-09-27
运行时间: 44 min
概述: Serenity is pulled in by a Tohoku-class cruiser while investigating a spaceship that was attacked by Reavers. Simon and River must hide to prevent capture, while something is wrong with the lone survivor of the attacked spaceship.
播出日期: 2002-10-04
运行时间: 44 min
概述: As an unexpected reward for an unpaid job, Mal finds himself married to a naïve, subservient young woman named Saffron. The crew are amused at his discomfort and Book lectures him on propriety, but things aren't as smoothly straightforward as they thought them to be.
播出日期: 2002-10-18
运行时间: 44 min
概述: Returning to a planet where he ran into some serious trouble years ago, Jayne discovers that he's become a local folk legend. Mal decides to use this entertaining distraction to complete a job, but some unfinished business may derail his plans.
播出日期: 2002-10-25
运行时间: 44 min
概述: After Serenity suffers a catastrophe that leaves her crew with only hours of oxygen, flashbacks show how Mal and Zoë acquired Serenity and assembled their motley band.
播出日期: 2002-11-01
运行时间: 44 min
概述: Inara attends a formal society dance, only to find Malcolm there as well, attempting to set up a smuggling job. Mal comes to blows with Inara's conceited date and finds himself facing a duel with a renowned swordsman, and only one night to learn how to fence.
播出日期: 2002-11-08
运行时间: 43 min
概述: 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.
播出日期: 2002-11-15
运行时间: 43 min
概述: Hard up for cash, Serenity takes on a job from Simon: help him get a thorough diagnostic of River in return for the opportunity to loot the vast medical stores of an Alliance hospital on central world Ariel. But River's pursuers are hot on their trail, and they receive some unexpected inside help.
播出日期: 2002-12-06
运行时间: 43 min
概述: Angered at Zoë's unshakable war connection to Mal, Wash demands a shot at a field assignment. Unfortunately, crime lord Niska chooses this moment to exact a brutal vengeance for Mal's failure to complete an earlier job.
播出日期: 2002-12-13
运行时间: 45 min
概述: 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.
播出日期: 2002-12-20
运行时间: 87 min
概述: Malcolm Reynolds is a veteran and the captain of Serenity. He and his crew are smuggling goods, but they need to pick up some passengers for extra money. However, not all the passengers are what they seem.
