This documentary explores the world of small songbirds, particularly the wren, known as the "king" of these tiny singers. Narrated from the perspective of the wren, the film delves into the lives of these delicate creatures, highlighting their vulnerability and the impact of climate change on their existence. Set against the backdrop of the Curonian Spit on the Baltic Sea, the documentary also showcases the work of scientists who, for over a century, have studied bird migration by banding these small birds, uncovering the mysteries of their epic journeys.