Every year, spectacular seasons transform our planet. As they sweep across the world, they drive all life on Earth, bringing huge opportunities and great challenges to everything. This program, narrated by Andrew Scott, celebrates the glorious nature of summer on Earth and the extraordinary ways animals and plants rise to the challenges it brings. With the sun shining and the flowers blooming, this is the season of splendid abundance, and the long hours of daylight make life burst out in a riot of activity.