Rust in Peace... Polaris is the closing track on the album Rust in Peace, written by Dave Mustaine. The song lasts 4:28 second on the album, but lasts 5:44 on reissue. There are two versions of this song, the original version plays as the standard track, and the demo version found as the bonus track on the reissue. This song tells the story about the ruler Polaris, which is a Satan, leading a nuclear war that would eradicate mankind while plunging the world into icy darkness with the disappearance of the sun.