The "Firefly" saga consists of 14 TV episodes, one big-screen movie and the undiminished passion of the space Western's fans, stars and producers.
To mark the 10th anniversary of the Fox show's abbreviated 2002-03 run, the Science Channel is airing the hourlong "Firefly 10th Anniversary: Browncoats Unite" at 10 p.m. EST Sunday.
The special will be preceded by a marathon showing of all the "Firefly" episodes starting at 7 a.m. EST.
For "Firefly" devotees, only one word can describe the prospect of seeing star Nathan Fillion, other cast members and creator Joss Whedon talk about making and missing their baby: "shiny," which is "Firefly"-speak for cool or good.
Fillion, who came down to Earth successfully in ABC's detective series "Castle," is happy to wallow in nostalgia and fan fervor. This summer, he took part in a packed San Diego Comic-Con tribute to "Firefly."
"The sheer volume of people is just the first part of it," Fillion said recently of the event. "Then you have to get down to how excited these people are. It's incredible energy. It's a very visceral feeling."
"The way I see it is there are people who love 'Firefly' as much as I do. 'Firefly' has a very special meaning to me, so I share in that excitement. It's easy for me to understand it," the 41-year-old actor said.
The series, a 26th-century adventure leavened with droll humor, followed the misfit crew of the Firefly-class spaceship Serenity. (The 2005 movie that rose, improbably, from the ashes of the low-rated "Firefly" was titled "Serenity." Comic books are among the other spinoffs.)
The ship's captain, Fillion's dashing but discontented Malcolm "Mal" Reynolds, fought with the losing, good-guy Browncoats in a civil war and now lives and works on the fringes of a repressive society.