The Insider.com

When Liam McIntyre won the role of Spartacus for the third Starz series, producers gave him one directive: "They said, 'If you want this role, you're going to have to harden up," according to the actor.

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And now the high-intensity workout the entire cast endured daily has been captured by Men's Health in a new video.

The non-stop workout was designed as a group effort to create a team spirit, according to stunt coordinator Josh Randall -- who is partly to thank for the eye-popping action sequences the Spartacus franchise has become synonymous with.

And with Spartacus: Vengeance set to launch later this month, Starz has released a teaser trailer that flaunts the bodies everyone worked so hard for. Check it out!