For time: 50 box jumps (24/20 in) 50 jumping pull-ups 50 kettlebell swings (35/26 lb, 16/12 kg) 50 walking lunge steps 50 knees-to-elbows 50 push presses (45/35 lb, 20/15 kg) 50 back extensions 50 wall-ball shots (20/14 lb, 9/6 kg) 50 burpees 50 double-unders