This is a pretty simple circuit that can be done from home and won't take long to get a good workout from home when you don't have a lot of time and can't make it to the gym.
It's a 3 round circuit that you can do at your own pace, the faster you do it the harder it will get. If you want to get a harder workout you just simply add more rounds.
-20 mountain climbers
-20 Jumping lunges
-30 reps Mason Twist