Red vs. Blue, often abbreviated as RvB, is a set of related comic science fiction video series created by Rooster Teeth Productions and distributed through the Internet and DVD. The story centers on two opposing teams of soldiers fighting a civil war in the middle of a desolate box canyon (Blood Gulch), in a parody of first-person shooter (FPS) games, military life, and science fiction films. Initially intended to be a short series of six to eight episodes, the project quickly and unexpectedly achieved significant popularity following its Internet premiere on April 1, 2003. Rooster Teeth therefore decided to continue the story. The fifth and final season of the original Red: vs. Blue: The Blood Gulch Chronicles series ended with episode 100, released on June 28, 2007. Four mini-series—Out of Mind, Recovery One, Relocated, and Recreation—and the full-length Reconstruction series have extended the plot.