The engines begin to fire up. Watch Episode 5 here and listen to ’em roar. (Image/Power AutoMedia)

The Horsepower Wars $10K Drag Shootout returns for a third go-around.

In the $10K Drag Shootout, teams are given a vehicle, plus $10,000 to build the quickest drag car possible. Oh, and they have 10 days to do it.

Miss any of the other No Prep Edition episodes in this series? Click here.

The four teams race head-to-head on a no-prep track to decide a champion. The winning team gets $10,000 and keeps its car. The losers get nothing.

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With just four days left, Episode Five isn’t short on drama. Tensions are high as the cars slowly come together. (Or at least as “together” as possible while the teams desperately wait on parts.)

As with any build, there are some setbacks, leaks, and a debilitated turbocharger—but one by one, the engines begin to fire.

Watch it unfold in Episode Five, below, of the Horsepower Wars $10K Drag Shootout, No Prep edition.