When a street kid turns up dead on the dockside Leary is convinced that the young runaway was tortured to death by other kids and Sunny backs up his theory. The killing reminds Da Vinci of a tragedy in his past in which a police investigation proved fruitless. Determined not to let that happen in this case, Da Vinci pursues a suspect who may help him resolve whether police negligence was involved in the boy's death.

A fire in a basement claims two lives and Da Vinci is there to investigate. Shannon and Leary are called to the dig site in Chinatown when Sunny makes a new discovery. An abandoned eastside house may provide the answer to Kosmo's questions.