Sylvester Stallone shares behind-the-scenes 'Rambo 5' photos on Instagram

Its been 10 long years, but Sylvester Stallone is back in the saddle as John Rambo - literally.

This time around, the troubled John Rambo is living on an Arizona ranch when he gets word that a friend's granddaughter has gone missing after crossing the border into Mexico, according to a Screen Daily report from May.

In what sounds a heck of a lot like Taken, Rambo embarks on a "violent descent into hell" to save a bunch of girls from a sex-trafficking ring and "bring down a vicious crime lord."

In the first photo, Stallone is looking very Arizona ranch-y indeed. "Tonight we start filming," he wrote in the Instagram post.

In the second post, Stallone is sitting atop a horse - and his caption confirms the photo is definitely from the set of Rambo 5. (Is there a secret badass story behind this Rambocostume, too?)

As MensHealth.com previously pointed out, Stallone once doubted his ability to pull off another Rambo movie: “The heart’s willing, but the body says, ‘Stay home!’” he toldVariety in 2016. “It’s like fighters that go back for one last round and get clobbered. Leave it to someone else.”

Clearly, things have changed since then - and it might have something to do with the actor's punishing workout regimen. At 72 years old, Stallone is still crushing it in the gym. I mean, just watch the guy pull off headbanger pullups.