The bonus video is a 3 min video of dan and Dave flourishing with red Wynns at rail tracks and stuff. You can get it by accessing the vault or buying the Trilogy at T11.
The Trilogy Bonus Video is a flourishing reel featuring Dan and Dave Buck that was shot in downtown Las Vegas. It's just over 2 minutes long, and, without a doubt, is one of the best-produced Cardistry videos I've ever seen.