Doctor Blake must unravel the mystery of the death of a primary school Principal, while helping Lawson face some ghosts from his past. Blake and Lawson discover that the dead man was well liked but had many secrets - and left behind a string of women with motives to kill.
Holloway and Blakemore investigate the disappearance of an environmental activist who they believe is responsible for an explosive protest that put one man in hospital. Sykes tries to determine what happened to a triathlon competitor who vanished during a race.
