Dmitry Kalmykov is a Ukrainian scientist who has dedicated his life to investigating environmental disasters, first at Chornobyl and now in Semipalatinsk, Kazakhstan – formerly the Soviet Union’s primary nuclear weapons testing site. He teaches schoolchildren about how bombs were tested, and how – more than 30 years after the site was decommissioned – the community is only beginning to comprehend radiation’s lasting deadly effects. Against the backdrop of war in Ukraine and the long shadow of a nuclear conflict across the region, Dmitry debates Kazakhstan’s nuclear future with its next generation

Steven Fuller has lived and worked at Yellowstone national park for the past 50 years, but now faces an uncertain future as the climate crisis intensifies

Helen’s world is turned upside down when she discovers that her face has been digitally edited on to images of women in sexually explicit and often violent situations.

On the anniversary of the start of the Nuremberg trials, 90-year-old Colette Marin-Catherine confronts her past by visiting the Nazi concentration camp where her brother died

They are the children of the Black Panther party – the self-styled Panther cubs. Born into the 1970s revolutionary movement for Black equality and self-determination, they have lived in the shadows of a promised land that was never attained

The Kimberley region of Western Australia is a beautiful place. But it is home to communities in crisis – devastated by a pattern of suicides among young Aboriginal people. A glimmer of hope emerges in the form of Prof Juli Coffin, a Nyangumarta woman and mental-health professional who enlists her herd of horses to create deeply felt connections between animal and human. Prof Coffin’s programme uses a culturally appropriate setting to support long-term healing for some of Australia’s most vulnerable young people.

Undercover police officers have infiltrated activist networks and forged relationships with individual women for over 50 years, some fathering children with them. Now, three women – disguised by theatrical masks – who were targeted by ‘spy cops’ seek to take charge of their own stories, restaging emblematic scenes from their lives and reclaiming the narrative

On the anniversary of the start of the Nuremberg trials, 90-year-old Colette Marin-Catherine confronts her past by visiting the Nazi concentration camp where her brother died