If you think it's impossible to sweat buckets in under two minutes, you haven't tried this challenge from Todd Durkin, C.S.C.S., author of The IMPACT! Body Plan. He choose three total-body moves -- the burpee, the dumbbell renegade row, and the squat to curl to press -- that will jack up your heart rate, hit every muscle from head to toe, and leave you spent. If you go fast and you go hard, there's no way you won't be dripping by the end of it.

Here's how it works: Perform the three moves in row with no rest. Do 5 burpees, 10 renegade rows, and 15 squat to curl to presses. That's one round. Finish two more as fast as possible.

Your goal: 2 minutes or less.

Ready to try it? Watch the video above to see how to perform the challenge. Let us know your time--and if you beat Durkin's time of 1 minute and 59 seconds--in the comments below.

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