Five 3-minute rounds of:
10 front squats
10 box jumps
Row for max calories.

Rest 3 minutes between rounds.

♀ 125-lb front squat, 30-in box
♂ 185-lb front squat, 36-in box

Post calories rowed each round to comments.
Compare to 180217.

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Scaling:
Pick loads, rep numbers, and a box height that allow you to get through the squats and jumps with a minute or so to row. However, you should need to sprint through the squats and box jumps to earn that time. The 3-minute rest will let you recover to sprint again in the next interval. Adjust after the first round if needed.

Intermediate Option:
Five 3-minute rounds of:
10 front squats
10 box jumps
Row for max calories.

Rest 3 minutes between rounds.

♀ 95-lb squat, 24-in box
♂ 135-lb squat, 30-in box

Beginner Option:
Four 3-minute rounds of:
10 front squats
10 box step-ups
Row for max calories.

Rest 3 minutes between rounds.

♀ 55-lb squat, 16-in box
♂ 75-lb squat, 20-in box