Here's the setup to start the chain reaction. Place one ball on top of a piece of chalk and then freeze another one to it.

I used two of these combinations in the shot. So make sure the first combination is aligned so it'll hit the second one. In this view, you see that it's off the rail a little bit. This is so the ball on the chalk doesn't catch the top of the rail and bounce toward the center of the table.

The rest of it is similar to the 7 Rail Bank shot. I like the cue ball 2 1/2 diamonds out from the short rail and about 1 diamond out from the long rail. Then pick an aim point, like the first diamond and hit it with a touch of draw and a touch of left. Stroke it good and hard, but keep the cue level or else you'll end up jumping all over the place.