The album's title is taken from the Italian-French epic fantasy feature film Hercules Unchained (1959).

Off of heavy metal overload, a positive review said that "Unchained is even catchier than the debut and tracks like Anger, Lightning Strikes Again and When Gods Collide are instant favourites and mandatory listening for any true metal party!"

"Needless to say, the corny balls-to-the-wall approach infects this release at every level, yet spiteful riffs and inspired chord progressions raise the bar well above the tacky 80s fist-pumping metal jolly-up."

They followed that up with praising such tracks as the "smashing" opener “Lightning Strikes”, the "colossal sounding" “When Gods Collide”, and “Anger”, calling the latter a "sweat-soaked dungeons and dragons anthem replete with rock hard abs.

"[4] All tracks are written by Jon Mikl Thor, except where notedThor Session members Miscellaneous staff