This one plays like watching a ghost. It's the proof-of-concept Mamoru Oshii cut to sell G.R.M., a project that collapsed under its own budget and sat dead for over a decade before he finally resurrected the bones as the live-action Garm Wars: The Last Druid in 2014. So what you're actually watching is ambition preserved in amber: the render work is the whole point, the reason anyone still passes this around, and it's why the people who've seen it keep insisting it deserved better. There's no arc to grade here, just a director showing a room full of money-people exactly what he could build if they'd let him. They didn't. Fifteen minutes of a world that never got to exist, and it still looks better than things that did.
On the planet ANNWN, armored beings known as Garm do battle with SEAL, shapeless monsters that are tearing the world apart. This one-episode special is a pilot film for Mamoru Oshii's G.R.M. project, a blend of fantasy and science fiction whose ideas were later developed into the feature film Garm Wars: The Last Druid.