Beginning on an 8-minute clock, complete as many reps as possible of:
  25 toes-to-bars
  50 double-unders
 15 squat cleans, 135/85
  25 toes-to-bars
  50 double-unders
 13 squat cleans, 185/115
If completed before 8 minutes, add 4 minutes to the clock and proceed to:
  25 toes-to-bars
  50 double-unders
 11 squat cleans, 225/145
If completed before 12 minutes, add 4 minutes to the clock and proceed to:
  25 toes-to-bars
  50 double-unders
 9 squat cleans, 275/175
If completed before 16 minutes, add 4 minutes to the clock and proceed to:
  25 toes-to-bars
  50 double-unders
 7 squat cleans, 315/205

Stop at 20 minutes.