Start at the first cone. Thrower, mark, defense and offense.
Offense runs to first cone straight ahead. Defense stays on open side hip.
Defense stays on the inside hip between the disc and the offense. They drop step so as not to turn their hips away from the disc.
Defense should deny the inside break.
Offense throws. This can be a deep, or under.
Variations include throwing whenever throughout the drill to keep the defense on their toes.