Watery Grave

Watery Grave

Available on Prime Video, Amazon Freevee
S4 E21: 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.
Starring Steve Bisley, Marie-Louise Walker, Mark Owen-Tayler