Trigun: Badlands Rumble Episode 1 -

: It introduces characters like Rayne Jacquet , who wants to save his village, Haleykound, built around a fallen spaceship part. 3. Franchise Episode 1s

In the Trigun franchise, is a standalone theatrical movie released in 2010, rather than a traditional episodic series. Because it is a single film, it does not have an "Episode 1" in the standard sense.

There is a specific manga one-shot titled (sometimes referred to as the movie's "Episode 1" in fan circles) that provides additional backstory: Trigun: Badlands Rumble Episode 1

: Because Vash saved Gasback, the thief escaped to continue his crimes, which eventually leads to the movie's main conflict in the present day at Macca City. 2. Badlands Rumble Extra 1 (Manga Tie-in)

: A notorious robber named Gasback is carrying out a major bank heist. : It introduces characters like Rayne Jacquet ,

: Nicholas D. Wolfwood rescues Vash by shooting through the floor to create an escape route.

: Vash the Stampede intervenes, not to stop the robbery, but to save Gasback’s life during a police ambush. Because it is a single film, it does

If you meant the first episode of one of the related TV series, here are the details: