"Stone Cold Deal" by John Mayall & The Bluesbreakers is a song about the harsh realities of the world, where justice is often not served and people are forced to resort to crime and violence to survive. The lyrics describe various instances of injustice and crime, including a mad dog killer being set free, a minor criminal being given a heavy sentence, cops being executed in Mexico while trying to bust a drug cartel, and politicians making empty promises. The song urges listeners to try to change the world, despite the stone cold deal that they may feel they have been dealt. Despite the challenges and injustices that exist, the song implores people to not give up and to keep trying to make a difference. Overall, "Stone Cold Deal" is a powerful commentary on the difficulties of life and the need for change.