In Victorian London, meteorologist Amelia Wren and intrepid balloon pilot James Glaisher embark on an astonishing adventure to challenge the limits of human knowledge. In order to conduct experiments that could revolutionize the understanding of weather, they decide to ascend to heights never before reached in a hot air balloon. As they rise through the clouds, the view becomes spectacular, but the initial excitement soon turns into a struggle for survival when an unprecedented storm catches them.
As the cold and altitude begin to threaten their lives, the relationship between Amelia and James deepens, revealing their aspirations, insecurities, and past traumas. However, their connection becomes a source of strength in the face of adversity as they work together to manage the aircraft and make critical decisions that could save them. Throughout their ascent, they face emotional and physical challenges that will push them to their limits, showcasing the resilience of the human spirit and the power of collaboration.
In a blend of science, history, and a touch of romance, this epic journey not only explores the desire for discovery but also highlights the importance of friendship and perseverance in critical moments. Ultimately, the flight becomes a testament to the power of curiosity and courage, redefining what is possible when the norms of the time are challenged.