2 rounds at consistent pace:

From 0:00 min to 4:00 min: 30/24 cal ski + 30 KB swings (24/16)
From 6:00 min to 10:00 min: 40 sit ups + bike or row for calories
From 12:00 min to 16:00 min: 500 m run + max push ups
From 16:00 min to 20:00 min rest