The twists and turns of the plot are telegraphed from miles away, so there’s not an ounce of suspense. Not only does Cassie have a voice-over to explain things, but characters dump information in rapid fire speeches filled with revelations of machinations that they’ve put together awfully quickly.

Expository speeches are the technique of choice for writers Susannah Grant, Akiva Goldsman and Jeff Pinkner, who adapted Rick Yancey’s novel. The execution of said triangle is unfortunately, generically laughable. There’s your to-be-expected love triangle, with hunky loner lumberjack Evan Walker (Alex Roe) positioned against high school crush Ben Parish (Nick Robinson). But this film is sorely lacking in irony – if there is any camp or humor to be found (and there is some) it’s mostly unintentional. This could be an opportunity for a subversive and satirical text, and at times, “The 5th Wave” comes close to feeling like Paul Verhoeven’s great propaganda parody “Starship Troopers,” particularly in the scenes of the young kids suiting up for battle – a small blond girl in full tactical gear and a long rifle is just funny (or is it?). Everything in the “The 5th Wave” feels, or at least looks, real.

In young-adult hits of the same genre, such as “The Hunger Games,” “Divergent” and “The Maze Runner,” the metaphor has a bit more freedom because the worlds in which they take place are visually fantastical, and therefore removed from our reality. Perhaps the reason some of the themes and imagery hit a bit too close is the way the film creates a recognizable world. She sets out to find her little brother, Sam, ostensibly to return his stuffed bear. The panicked surviving humans band together in the woods until their children are rounded up by the army for “protection.” Teen Cassie (Chloe Grace Moretz) escapes the collection and ends up alone in the woods with only a few guns for comfort.

There’s a deeply anti-government streak to the politics of “The 5th Wave,” which imagines a world in which an alien race takes over the planet and starts eradicating the human species in a series of waves that destroy infrastructure, environment and health. The sight of teens with rifles is one we’re used to from news reports of a much more tragic nature, so the imagery definitely gives one pause.

Which might actually be true, but it’s also the subtext of the dystopian young-adult film hitting theaters this weekend, “The 5th Wave.” The film opens with a winsome blond teen girl executing a man with a military-style assault rifle, and the teen gunplay only goes further from there. When the apocalypse happens, all that’s going to be left for us are the guns.

Is evan walker an alien in the 5th wave