42.2 km of running. With 20,000 (!) steps along the way. Nicolay challenges fitness enthusiast Kasper Kvello to a marathon on the Great Wall of China.

Grown men slap each other with all their might in "slap kabaddi," a popular combat sport in Pakistan. Kristoffer Olsen and Nicolay give it everything they've got.

Kamelen and Nicolay put their lives on the line when they become the first-ever amateurs to take part in "Cerro Abajo" in Chile—the world's most dangerous bike race.

Take a breath, dive as deep into the ocean as you can, and come back up – without drowning. Tonje Frigstad and Nicolay are signing up for the Freediving World Championships in Cyprus.

Vegard Ylvisåker and Nicolay head to the Rocky Mountains in the USA to compete in a wild slalom contest behind a galloping horse.