After tracking down D.E.A. agent Sophia Williams - the woman linked to the kidnapping and murder of the love of his life, Sassy, Ace discovers a shocking revelation and horrible truth. The person he trusted like a brother, someone who had been with him from the start, was the disloyal snake who orchestrated the entire setup which cost Sassy her life and nearly ended Ace's. Now fugitives wanted for questioning in Sophia's murder, Ace and Whiteboy must tread carefully as they devise a dangerous plan to recover the diamonds revealed by Sophia before her death. But their mission takes a devastating turn when Whiteboy is gunned down, leaving Ace scrambling to keep himself afloat in the sea of enemies. To make things worse, an old nemesis re-emerges. A man who Ace assumed to be dead, is back in the picture with a hard set vendetta. And this enemy wants nothing less than to take everything which Black built, and settle a deadly score with Ace. With enemies multiplying at every turn, Ace must fight to stay alive if he intends on getting his hands on those diamonds, while making everyone who ever crossed him, regret it. IN the Streetz 4 is a world where trust is a liability and survival comes at a deadly cost.