The latest national and international news, exploring the day's events from a global perspective.

George McGavin investigates the dramatic life of the oak tree - a species that makes extraordinary transformations as it meets the challenges of the four seasons. Show more

A portrayal of time passing in a walled garden. Using real-time and time-lapse footage, it explores the relationship between the seasons and the plants, and people who work there. Show more

Series telling the story of the Vietnam War. Massive US airpower makes the difference in halting an unprecedented North Vietnamese offensive. Show more

Series telling the story of the Vietnam War. While Watergate forces Nixon to resign, the Vietnamese continue to savage one another. Show more

Looking at the Taino people of the Caribbean, who had a multicultural society with drug-infused rituals, strange skulls and amazing navigation. Show more

Historian and writer Dan Cruickshank explores how humanity has created beauty through architecture, beginning in Greenland where he attempts to build an igloo. Show more

Spanish thriller. An injured, confused man is visited by his wife in hospital. She tells him he is a lawyer, and that their niece is missing and her blood was found in his car. Show more