Frame 1
The play begins with #5 setting a back screen for #2. After #2 clears, #5 will then set a back screen for #4. The options for the inbounds passer (#3) are #2 and #4 in that order.
 

Frame 2
If the lob passes are not open, #2 will clear to the help-side corner and #4 will clear to the ball-side corner. From here, #5 will turn and set a down screen for #1 who comes and catches between the circles.

If the defense switches, #3 will throw the inbounds pass to #5 who steps back to the ball. As soon as the ball is inbounded, #3 will fill the corner on his side.

Frame 3
When #1 catches, he will use a middle ball screen set by #5 and go away from the side on which the ball was inbounded. As soon as #1 clears the ball screen, #5 will roll to the basket and #3 will fill the slot on his side to maintain defensive balance.