The Lyell team return to the crime scene as another victim is in peril. Family ties are tested to their limits as they reveal the dark secrets that led to the tunnel collapse, and Jack is put in a difficult position when a blast from the past comes to visit.
Silent Witness is a forensics crime drama that focuses on a pathologist who attempts to identify cuddle victims and figure out what caused them to die.
Silent Witness - Hearts of Darkness (2) Synopsis and Schedule