This is variation of a normal passing leap where both flyers leave the platform together. There are two ways to achieve this: with the flyers hanging one in front of the other, or side-by-side. At the front end, the first flyer makes a pullover as the second makes a legs catch. Both trapezes swing back to the middle and the first flyer pumps and shoots over to the catcher as the second flyer comes up underneath the bar for a Legs Return (they cross in mid-air). The second flyer, now back on the fly bar, swings on one side of the bar. The first swings with the catcher then comes back to the other side of the fly bar with a simple Half Turn return. They end up swinging side by side on the bar and get back onto the platform together.
You can find out more about this trick in my books:
Thanks to Véronique for providing a video for this page.