Ada and Emily are best friends and next-door neighbours. They love to engineer and build a variety of creations in Ada's shed. One warm summer day whilst staring up at the sky, they realise what they want to do most is fly. They quickly get to work, turning a past project, a go-kart, into their very own aeroplane in which they can take to the skies and have amazing adventures. Join Ada and Emily as they plan and build their aeroplane, become aircraft engineers and pilots, and take their first flights.