Hangar 18

The song takes its subject from the story of a building at Wright-Patterson Air Force Base near Dayton, Ohio, said to hold an alien spacecraft or bodies. Mustaine first had the music under the title N2RHQ in his earlier band Panic. Mustaine said he does not believe in aliens but that it made great song material. It has twin guitar solos after the verse, and the bass is tuned to Drop D for the first half while the guitars stay in standard tuning. Ed Repka's cover for the album illustrates it.

It was a single, reaching 26 in the UK and 25 in Ireland, was nominated for Best Metal Performance at the 34th Grammy Awards, and won the Top Radio Cut award at the 1991 Foundations Forum. The video, set in the Scattergood Generating Station, shows aliens being tortured and, at the end, the band in freezing chambers. A sequel, Return to Hangar, appears on The World Needs a Hero.