This episode explores the mystery of the vanishing Colorado River Delta. Once a lifeline for the American Southwest, it's now a shadow of its former self. What happened? Outdated water laws? Excessive urban development and agriculture? Is there a possibility for restoration? Let's investigate.

The Choco region in northwest Ecuador is hosting a groundbreaking experiment to try and help it’s rainforests recover from rampant deforestation. A multinational team is planting small “tree islands" to attract natural seed dispersers. It’s an innovative approach that we’ll take a close look at, from above and within.

Hidden beneath the surface of our coastal seas are towering forests - of kelp. These underwater ecosystems are as crucial to our environment as their land-based counterparts. We’ll explore them alongside conservationists who are working to restore these threatened habitats. We'll also meet some adorable sea otters and learn about the role they play in maintaining the balance in this sensitive environment.

The Channeled Scablands of the Pacific Northwest hide an astonishing secret. Evidence of a massive flood that shaped the entire region lies just beneath its landscape. But it can only be seen with cutting edge LIDAR technology. Join Joe as he learns how scientists are using lasers to reveal details that may help us predict the paths of potential megafloods of the future.

Join Joe in this exploration of a true titan of modern engineering: the world's largest crane. With a lifting capacity of 5,000 tons—equivalent to hoisting a SpaceX Starship Heavy—this giant ring crane at Rotterdam's Mammoet headquarters is a true powerhouse that plays a crucial role in the renewable energy revolution, building massive offshore wind turbines that help combat climate change. And yes, they may let Joe drive it.