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Watch Colin Firth Kick Ass In The Red-Band 'Kingsman: The Secret Service' Trailer

'I'll be right back.'

How deep does the new red-band trailer for "Kingsman: The Secret Service" go into red-band territory? Deep enough.

Colin Firth channels his inner Hit-Girl in the brand-new, NSFW trailer for "Kingsman," directed by "Kick-Ass" director Matthew Vaughn and based on "Kick-Ass" creator Mark Millar's comic book about top-notch British super-spies who keep the world safe from threats the greater public knows nothing about. Firth isn't alone, either, joined by an all-star cast including Mark Strong, Michael Caine, and Samuel L. Jackson as the doesn't-give-a-f--k villain.

There's foul language, head-shots and umbrella-powered brain explosions aplenty. See it all for yourself:

"Kingsman: The Secret Service" hits theaters on February 13.