Every 2 minutes, for 32 minutes for max calories:
Station 1 - 90 seconds of Ski-Erg or Assault Bike (for calories)
Station 2 - 20 Front-Racked Kettlebell Walking Lunges (24/16 kg)
Station 3 - 90 seconds of Rowing (for calories)
Station 4 - 15 Burpee Box Jump-Overs (24"/20")