Biologist Patrick Aryee sets out on a breathtaking global road trip, answering some big questions about the vast natural world. From the jungles of Costa Rica to the rainforests of British Columbia, from the treetops to the unseen world beneath the ground, he reveals the complex web of interactions that connect the smallest of creatures to the mightiest carnivores on the planet. Along the way, he explores how seemingly small disruptions to ecosystems can have far-reaching implications for the species involved.