30 Seconds Work, 15 rest 
Complete 5 rounds
This workout will take less then 10mins.
Cross mountain climbers (with/without disc)
Bikes
Jump Squat
Get as many reps in per 30 seconds as you can, with correct form. Work as intensely
as you can, while at the same time listening to your body. Be aware of any issues it may
be trying to tell you about. Take care of your body and your body will take care of you!