Starting with the kite on it's belly with the nose away from you, pop both lines hard and then release. This takes the kite into the first stage of the Ground Zero which is a French Toast - the kite jumps up and the nose swings up into a Fade position. Immediately pop both lines again, as if starting a Flic-Flac, to get the nose to swing back down so that the kite is once again on its belly with the nose away, but this time a few inches above the ground. The final stage, the "Zero", is a 360 degree Flat Spin. From this you can pop back into a Fade/Flic-Flac, Flic-Flac to land, recover, or whatever takes your fancy. The combination should be done very quickly without any pauses between the elements.
You can also do the Ground Zero from a Headspring launch rather than flat into a French Toast.