On a 25-minute clock:
Run 1.5 miles
Then perform as many rounds as possible of:
10 push-ups
20 lunges
30 sit-ups
Post rounds completed to comments.
Scaling:
Deconditioned athletes should reduce the overall volume of this workout while still maintaining the general format and bodyweight movements.
Beginner option / On a 20-minute clock:
Jog 1 mile
Then perform as many rounds as possible of:
5 assisted push-ups
10 lunges
20 sit-ups