The Cold Case team investigate the mystery surrounding human remains found in an urban canal with links to the murder of a prison governor.

After the discovery of Terry Ryan's body buried in a field,more corpses are uncovered..leading Grace to think it is a ritual burial site.

Meanwhile Boyd and the team race to find Dr Hooper,whom Kelleher has taken hostage.

And back in the lab Eve makes a shocking discovery.

An old adversary of Boyd's asks him to investigate two deaths at her psychiatric hospital.

Boyd and his team uncover the awful truth behind the walls of the psychiatric hospital.