Slammer was one of the first UK thrash metal bands to sign a major label deal with WEA in the 80's.

The first release on HMR was the four track Insanity Addicts which a video was shot for the other three tracks on this release showed strong Metallica influences. 1991 saw them release their 2nd full length album Nightmare Scenario which has a superb cover the artist Koot based in Bradford had also recently done the Almighty's Soul Destruction cover.