Episode 1

S1 E1: The first port of call on Martin's journey is the lush, tropical Hawaii. His exploration looks beyond Hawaii's image as a tourist paradise, crammed with sun-kissed beaches and world class surfing, and into the havoc wreaked by advancing lava fields and smoking craters. Leaving Hawaii Martin flies 2,500 miles north to the islands of Alaska, where the contrast couldn't be more extreme, from tropical rain forests to snow-fringed glaciers; from crowded beaches to some of America's most sparsely populated territories.