An angry driver cuts off a state-owned truck, is rammed from behind and rearends a parked semi. Result? Two deaths and a paralyzed passenger, a lawsuit against the state, and pressure on the ME to alter blood alcohol results.

Pembleton and Bayliss investigate the death of a cancer patient when a relative insists the hospice doctor killed him in a "mercy killing." Stivers and Falsone investigate the murder of a 12-year-old girl outside a pizza shop on her way to school.