I felt similarly about the shakiness of Justin Martinez’s “Live and Let Dive,” but it has SUCH a killer idea that it’s more forgivable. Not since the brilliance of “GoPro meets zombies” in “V/H/S/2” has this series found such a neat way to tell a horrifying story. In this one, a group of people are going skydiving for a 30th birthday when they, thousands of miles in the air, stumble upon an alien invasion. As their plane explodes, and half of them smash to the ground, the survivors are forced to race through an orange tree field to avoid the massive alien creatures now hunting them. It’s “District 9” with skydiving. Fun.