There’s a grounded Unbreakable vibe that permeates parts of Gina Prince-Bythewood’s The Old Guard. In a cinematic universe where comic book adaptations are hurled at us every couple of months, this R-rated Netflix pic manages to frequently feel fresh and captivating. There’s a less is more spirit as the screenplay (from Greg Rucka based on his own graphic novel) sets the table for inevitable sequels. That’s not to say there aren’t a fair share of shoot-em-up video game style battles. There are and they’re a cut above some others.

Andy (Charlize Theron) leads a group of fighters as we open on their assignment to rescue abducted young girls in Sudan. Her teams consists of Booker (Matthias Schoenaerts) and Joe (Marwan Kenzari) and Nicky (Luca Marinelli), who are also a couple. Their assigner is CIA contact Copley (Chiwetel Ejiofor). If Danny Glover’s Roger Murtaugh complained about being too old for his job (he put it another way), he should’ve met this squad. The quartet is immortal. Andy can’t even remember her age (we’re talking thousands of years) while the others mark their existence in centuries. They’re not famous like The Avengers and the modern world makes it trickier for them to stay inconspicuous. The group can be riddled with machine gun fire and bounce back within a few seconds. That makes them, of course, lethal weapons.

Their latest gig turns out to be a double cross involving pharmaceutical company CEO Steven Merrick (Harry Melling). We know he’s bad because his company logo is often ominously panned to before he lays out his plans. They involve capturing the immortals to study their priceless DNA. Merrick only has profit on his mind even if that means locking up his subjects with his private army guarding them. His associate Copley’s reasonings are a bit more noble.

The eternal foursome becomes a quintet with American soldier Nile (KiKi Layne). After her tour of duty ends violently, she miraculously recovers and confounds her coworkers. Andy and team come to the rescue as they must explain her new undying circumstances (she’s the first new member of the exclusive club in over 200 years). With Merrick attempting to prescribe their captures, the well-choreographed action sequences commence.

Rucka’s script weaves in occasional flashbacks of Andy’s past that reveal other associates. It turns out nothing may last forever even though our main warrior probably fought alongside Alexander the Great and Genghis Khan and partied with Keith Richards. These callbacks to history succeed in elevating anticipation for future installments.

If there’s as flaw in The Old Guard, it’s the most common of its sort. Melling’s villain isn’t exactly fleshed out. We’ve become used to the antagonists being a weak link. The preachy tone about the industry he works for can sometimes come across as clumsy and there’s the lingering knowledge that these heroes have likely fought far more interesting foes.

Yet I welcomed the approach of letting the vast backstory of the main characters have gradual reveals that are surely still formulating. Some origin stories play like the duller forward to more enticing chapters. That’s not the case here and with the talented Theron leading the charge, The Old Guard could turn out to be an enduring title in the 21st century’s preeminent genre.

*** (out of four)