The 4 curls the pin down to the rim and the 2 goes to set a screen for the screener (1). The 1 comes off the screen set by 2 to the top for a shot. If he doesn't get the shot 5 dribbles at 1 who comes over and takes the hand off the. Opposite corner (3) raises up and the 2 and 4 fill out. They play from there.
They they run a pick and roll right after the flair and the 4 drives the middle while everyone else spots up.