The Seahawks run the ball a lot, and "329 Boot Pass" is designed to take advantage of defenses knowing that tendency.
It starts with quarterback Russell Wilson (3) under center and running back Marshawn Lynch (24) directly behind him. The Seahawks are in "21'' personnel, meaning they have two tight ends and one running back. The tight ends are stacked on the right with Zach Miller (86) on the line of scrimmage next to the tackle and Luke Willson (82) a yard behind him. Golden Tate (81) is lined up wide left and Dough Baldwin (89) wide right.
Baldwin starts by coming in motion, the first part of the deception that the play is going to the offense's left. All five linemen block in that direction at the snap of the ball and Wilson fakes a handoff to Lynch going left. But Wilson keeps the ball and rolls to his right.
In front of him he has three targets at three different levels. His shortest option is to throw it to Miller, who after blocking down has peeled off for a shallow check-down route.
Beyond Miller is Willson, the other tight end, who is running a 14-yard out. Beyond him is Baldwin, who runs 18 vertical yards before breaking off his route on a post.
In addition to those options, Wilson can also keep the play alive with his feet (as he often does) and wait for Tate to come across the field from the left at a depth of eight yards.
One final option for Wilson is the ability to turn to his left and throw back across to field to Lynch, who may be wide open on the backside with the defense chasing Wilson toward the far sideline. This wasn't the exact same play the Seahawks ran in a key situation against the 49ers in the NFC title game -- the starting alignment was different as Lynch was not in the backfield for a fake -- but the principles were the same as when Wilson hit Baldwin for a 51-yard pass.
On that play, Wilson wanted to throw back to his left toward Lynch, bought precious seconds while out of the pocket, and finally found Baldwin deep down the middle of the field to set up a field goal in the first half.