This is a race between climate change and ZeroAvia, a maverick tech start-up in a sleepy, picturesque part of the West of England.
With time running out before we reach global tipping points, aviation is one of the only large carbon emitters with no proven Plan B.
In this film we meet the global team of tech-geniuses and engineers who are taking on the giants of aviation in creating a sustainable alternative to fossil fuel powered commercial flight. Fast. What drives them, what are the challenges and will they achieve Emission Impossible?