This is a simple end-out from USC. 2-5-4 stack in front of the ball, on a call or slap of the ball 3 and 4 break to the corners, 5 curls to the other side of the basket.
5 immediately cuts back to the middle and backscreens for 2, who has moved up the lane, then 5 slips towards the ball looking for a pass over the top.
As 5 is moving to screen, 3 breaks back high to take his defender out of help and be a long outlet in case no other pass is open.
See Inbounds - Baseline Faucher (Intermediate), also USA.