Handler receives pull, throws to middle handler to initiate play while cutters set up a horizontal
The play had been called "from the away side" on the line (pylon [20] marks home side), which means the first throw is going to 1. 2-4 clear deep hard a few steps, allowing 1 to slash across (after selling an out by a hard step or two, as shown here)
1 slashes across into the open space
The continuation is to 3, who is threatening deep and may receive a huck. 2 has button hooked into the initial 1 lane, allowing for a bailout throw if the slash from 1 did not work
If the huck was not viable, 3 will be prompted to cut-in hard by 1's pump fake. This will result in a large gainer up field