The play is set up with a vertical stack set deep in the endzone. The stack's job is to stay out of the way while the handlers work it in.
The play is best called when the disc is closer to the endzone and closer to the sideline. The off-disc handler runs up the line into the endzone looking for an around break for the score.
Sometimes this throw is too difficult because of the force, so you may choose to do something different from the starting position.
The off-disc handler fakes upfield...
To get free for a swing.
The first handler runs a give-and-go, and sets of up the line for the score in the same way as the first play.
If the cutter doesn't get free or is looked off...
The cutter at the front of stack comes out and takes a swing, and the handler who got looked off joins the stack at the front.
From here you can run either your basic endzone play, or call an iso on front of stack.