4 x 4-minute rounds, for max calories/reps of:

Bike for 20 seconds, rest 10 seconds
Burpee for 20 seconds, rest 10 seconds
Row for 20 seconds, rest 40 seconds
Row for 20 seconds, rest 10 seconds
Burpee for 20 seconds, rest 10 seconds
Bike for 20 seconds, rest 40 seconds