A friend and i were shooting 'b' roll footage over a private lake community in insbrook, mo. shortly after i started taking the video, i saw a flash of lightning in the distance on the horizon. almost immediately after (between the 4 and 5 second mark in the video), an absurdly fast disc-shaped object crossed my field of vision, travelled over the water, and into the background behind a tree. it appears to be far too smooth, fluid, and fast to be a bird or insect. not to mention, the size of the disc is inconsistent as it would be the size of a dragonfly when it came up from behind me. by the end of the clip, the object is clearly much further away but still relatively large. there is no insect or bird that i know of that can cover 3/4 of a mile in 1/2 of a second and still be visible.