Endurance WOD Workout

In teams of 2 ascend the ladder for 40 minutes:
4 Kettlebell Swings, 4 Box Jump Overs, 4 push ups
20 cal row
6 Kettlebell Swings, 6 Box Jump Overs, 6 push ups
40 cal row
8 Kettlebell Swings, 8 Box Jump Overs, 8 push ups
60 cal row
etc…

Share the work. One works, one rests.