Transcript for The Record Sky Dive
you're looking at an adventure over the skiefs illinois. These skydivers dropping at 220 miles an hour right into the record book. It was an extraordinary mission. About to unfold in illinois countryside. Skydivers from all over the world. 11 countries in all gathering for a daring mission to break the vertical record for skydiving or free flying that it's called. Free flyers fly head first and we're trying to build the largest link formation. Months of planning and tryout, 138 skydivers squeezed into six planes and watch right here as they jump out at 18,500 feet above. Some of them with cameras mounted right to their helms. We're linking up all balancing on our heads. With the higher air speed, it's tricky maneuverabilitywise to link up. Already free falling they reach out to grab each other's hands. Skydiver knowing when to exit, whom to follow and where in the formation they should be. They fell at speeds of 220 miles per hour, heads down. When they joined hands they created an enormous snowflake formation spanning 150 feet. With their display complete, time for the record-breaking skydivers to break away from each other. And deploy their parachutes. Descending one by one. You can see the skidding of their shoes. There's that spectacular image in the sky.
This transcript has been automatically generated and may not be 100% accurate.