Goal is to get the disc in power position or to the break side early. You want to run this right around when the defense is starting to slow down into setting up on your O. You also want to push the disc out to the force side a bit to make the break throw easier if/when it comes.
As defense settles in, 4 starts to cut out just a tad to keep his guy freaked out. 2 goes for the strike hard. You can hit him if he wins the space. Make sure to keep the stack defenders busy enough to not run through and poach. If 2 gets it, he may actually get a decent shot to 4 deep. So 4 needs to see whether that throw is going or not.
If he doesn't get it, then 5 now has a whole host of green space to cut into. He should do so.