Death by sprint and pushups:

First min. Do 1 pushup, 5m sprint, 1 pushup
Second min. Do 2 pushups, 5m sprint, 2 pushups, 5m sprint, 2 pushups
Third min. Do 3 pushups, 5m sprint, 3 pushups, 5m sprint, 3 pushups, 5m sprint, 3 pushups

Post how far you get.