Set in the late 80s, when the war against drugs was beginning to collapse, The King of Jersey follows Chris as he becomes a small-time dealer. He encounters the accidental death of a friend's girlfriend, a revenge killing and a murder that he himself can't avoid participating in. He soon learns that death, the sacrifice of friendships, and even backstabbing by those once loyal to each other are the casualties along the path he has chosen.
Entering the high-life of the international drug trade, Chris finds a way to sell "gold seal hash," the sexiest drug on the streets of Jersey, to become a kingpin in a flashy underworld of clubs, thousand-dollar-a-night hookers, wealth, and power that deteriorates everyone that touches it. He never really wanted any of this, even though it made him grow into a man - the man he never wanted to be.
Chris himself becomes a potential casualty in his new life when he uncovers the truth about a failed hit. Now he must run from the game and leave this dangerous life forever before vengeful rivals and powerful political thugs find him.