As Marsiversary celebrations begin, Trevor continues trackingHubert, while Crystal searches for a missing Jeff - followinga trail that leads to Tee's crew.
Scruffy, cab-driver Ed is hardly the saviour-most-likely,until one day he receives an Ace of Diamonds playing card, theaddresses of three strangers written on it. Who sent this card?And what is Ed meant to do with it?
As the CID reopen an investigation into three murders from1973, DCI Paul Bethell tries to piece together a past that hashaunted both him and a community for almost 30 years.