Saulius is a journalist who reflects today’s society: everyone has heard about sustainability, everyone knows they should act more responsibly, yet just hearing these words often triggers a kind of rejection. To Saulius, these topics seem too complex, too boring, and too distant, but he decides to give it a try, because if no one even attempts to change, nothing will ever change. Driven by a sincere yet somewhat naïve desire to understand the world, Saulius embarks on a personal journey through the labyrinth of sustainability ideas, trying to answer the question: what is sustainability?