Chaos Bound is the story of Holt "T-Rex" Savage and Naiya Kelly. Holt saved the life of Evie by offering himself in trade to the Black Jacks in Sinner's Steel, but after trying to save him, the Sinner's were led to believe that he was dead. Three months of enduring torture by Viper, the leader of the Black Jacks, left Holt physically beaten and mentally bitter with a desire for revenge against the Black Jacks and the Sinners. When Naiya is thrown into the Dungeon with Holt, he finds a means of not only escape, but possibly a way to lure Viper into a trap and kill him. Naiya was taken from her mother's funeral by Viper who claimed her at 15 when he raped and branded her. Even though she had struck out on her own, Viper was still obsessed with having her as his own. When she helps Holt escape the Dungeon, she begins to hope that she might get away from Viper permanently. This was a different kind of MC story because most of it took place away from the MCs and instead followed Holt and Naiya as they both struggled to find a new reality for themselves. I especially liked the connection in the story between friends, Holt and Tank, who had depended on each other as more than just MC brothers. A nice story that probably brought an end to the Sinner's Tribe MC series.