The Okavango is one of the most diverse habitats on earth. This is a place of spectacular natural dramas where the fortunes of tens of thousands of animals each year are controlled by one ruler - The Great Flood.
In season six of the British espionage thriller, the team are pushed to their limits, as the relationship between British and American security deteriorates and loyalties change. Adam and Ros fight against an emerging terrorist threat, and a deadly virus that could decimate London. This season breaks away from the case-by-case episodic format, with one dominant storyline tying ...
