The film takes place in the second half of the nineteenth century. James Glacier is the assistant director of the Greenwich Observatory who is a respected meteorologist. He is developing his own method for determining the weather, which is observation from a balloon. Having met Amalia Ren, a young girl from a wealthy family who is fond of balloons, James asks her to take him into the sky. They are going to observe meteorological changes in the atmosphere, but are exceeding the permissible altitude. As a result, they end up in an area where the air is highly discharged. In addition to this, a storm is moving in their direction, which puts the lives of researchers at risk ...