Preston becomes involved in the prior case of Simon Gray whom he successfully acquitted of a manslaughter charge four years earlier. Gray, who was driving a school bus that crashed and killed seven children, continues to be tormented by guilt over the incident. Gray's own granddaughter was one of the fatalities, and the situation is exacerbated by the unrelenting grief of his daughter. Preston seeks to find closure for Gray and his family by further investigation of the accident.
—Skip Eastport