Two skydivers exit a twin otter aircraft wearing an additional tertiary harness with an intentionally malfunctioning high-performance parachute.  The pack jobs were designed for the parachute to open partially so they would spin and flail for a violent descent. Both performers rode the malfunction for 4000ft of descent, then at a set altitude, had to release the malfunctioned parachute and restart a ‘normal’ opening sequence to land safely. Everything was performed practically with the videographer capturing footage in a free fall or under canopy. Performers had to drill alternate emergency procedures due to the addition of the third parachute. Death or catastrophic injury would occur if handles were pulled out of sequence. No CGI was used, all practical skydives.