When it comes to margins of error, it doesn't get much slimmer than what these two French wingsuit flyers pulled off.
From the peak of Jungfrau, one of Europe's highest mountains, Fred Fugen and Vince Reffet BASE-jumped into a moving plane.
The jump—which occurred among more than 100 others as a part of the pair's Door in the Sky project in Empuriabrava, Spain—was unlike any BASE jump we've ever come across.
The sequence looks like a cheat code-aided Grand Theft Auto stunt. Watch as the duo seamlessly slips into a moving plane in the middle of a wingsuit flight.
The acronym BASE stands for building, antenna, span, and earth—the four points from which the extreme sport can begin.