3/4 A look at the rapidly changing environment of the waters of the UK's eastern coastline.
2/3 Patrick and Helen enter the hidden world of sound experienced by different animals.
12/16 Documenting the lives of Japan's mountain-dwelling snow monkeys.
8/19 A look at new planets being discovered and what this means for our solar system.
2/4 Wildlife face the biggest storm in living memory. And the basking sharks arrive.
3/3 A massive North Sea ferry undergoes the biggest overhaul of its 25-year service.
4/4 Chris Packham looks at the grey seal and the Manx shearwater.
3/3 Workers at British defence contractor QinetiQ reveal some of their secretive projects.
Evan Davis decodes the formula that took Apple from suburban garage to global supremacy.
Documentary following the construction of the Astute nuclear submarine.