Deep down in the Pacific Ocean in the subterranean city of Bikini Bottom lives a square yellow sponge named SpongeBob SquarePants. SpongeBob lives in a pineapple with his pet snail, Gary, loves his job as a fry cook at the Krusty Krab, and has a knack for getting into all kinds of trouble without really trying. When he's not getting on the nerves of his cranky next door neighbor Squidward, SpongeBob can usually be found smack in the middle of all sorts of strange situations with his best buddy, the simple yet lovable starfish, Patrick, or his thrill-seeking surfer-girl squirrel pal, Sandy Cheeks.

Thomas Timber Wolf is a timber wolf who fancies himself a smoothly sophisticated predator. However, for all his smooth talking ways, Thomas has a great deal of trouble dealing with his wilder neighbors. The fact that he reflexively roars "TIMBER!" and causes a tree to fall on his head whenever he says his name does not help either.

In the North of Scotland, far from bustling cities and gentle hills of the South, lies Europe's greatest wilderness – the Highlands of Scotland. Scoured by ice and weathered by storms, it may look bleak and lifeless, but wildlife is thriving in this unforgiving place, if you know where to look! In this stunning four-part series, narrated by Ewan McGregor, we meet ospreys, red squirrels, otters, dolphin and golden eagles – all struggling to turn adversity to their advantage and make a success of living in Scotland's living Wild Heart.