formation sky diving with their parachute open. >> today his partner is katie hanson. >> she won't be so intimidated that they can't think and can't do. >> craig and i jump together all the time. >> hanson is recording their jump on her helmet cam. >> everybody has cameras. this is sky diving. >> stapleton and hanson are a good team with more than 11,000 jumps between them. stapleton has done this stunt they are about to tackle before, but it's the first time for hanson. >> there is a learning curve where you have to figure out what could possibly be going wrong. >> at 8,000 feet, they start their high-stakes stunt, tethering themselves together with both chutes open. >> i've actually crawled down the lines of her parachute so