Explosion Network may receive a commission when you purchase something via a link on our site
BritBox is delivering some exclusive new series, as well as returning ones, in August. With the addition of Death Valley: Season 2, as a BritBox exclusive here in Australia, being a highlight of the list.
Check out the list of movies, series and specials coming to BritBox in August 2026 below. In the comments section, let me know which ones you are the most excited to watch.
AUGUST 4
Death Valley: Season 2 [BritBox Exclusive]
The unlikely crime-fighting duo return for a second season of the Welsh comedy-crime drama. Newly promoted Detective Inspector Janie is busier than ever, while John is still dealing with the fallout of an unexpected revelation. Putting their differences aside, the pair reunite to solve a fresh batch of murders across Mid Wales. Starring Timothy Spall and Gwyneth Keyworth.
AUGUST 6
- The Salisbury Poisonings [New Series]
AUGUST 7
- Litvinenko: The Mayfair Poisoning [Documentary]
AUGUST 13
The Rumour [BritBox Exclusive]
Based on Lesley Kara’s bestselling novel, this mystery thriller follows Joanna, who moves to a quiet town with her young son in search of a fresh start. After hearing rumours that a child killer is living within the community, she shares the story with other local mothers, unknowingly unleashing fear, paranoia and suspicion that quickly spirals out of control.
AUGUST 14
- Freddie Flintoff’s Field of Dreams: Season 3 [Returning Series]
AUGUST 26
Sister Boniface Mysteries: Season 4 [BritBox Exclusive]
The Vespa-riding nun returns for another season of delightfully eccentric mysteries. As Great Slaughter’s scientific adviser, Sister Boniface finds herself investigating everything from deadly game shows to murderous scarecrows in the fourth season of the popular Father Brown spin-off.
AUGUST 27
Unforgotten: Season 6 [New Series]
The acclaimed cold case drama returns as DCI Jess James and DI Sunny Khan investigate dismembered human remains discovered in Whitney Marsh. As they piece together the victim’s final years, a group of seemingly unrelated strangers are drawn into a decades-old mystery they’d rather remain buried.
AUGUST 28
- The Real Unforgotten [Documentary]
Check out our ‘Now Streaming‘ page to discover what else is available to stream on Stan, Netflix, Prime Video, and more in Australia.
[Descriptions provided by BritBox]
