the 5th wave, 5th wave trailer, chloe grace moretzIt's your typical romance story: Girl meets boy, girl suspects boy of being an alien, girl tries to save the planet from an invasion.

That's the gist of "The 5th Wave," the big-screen adaptation of the YA novel of the same name, with some natural disasters and big-budget special effects thrown in for good measure.

The first trailer for the flick introduces us to Cassie (Chloe Grace Moretz), who's separated from her family in the midst of an alien invasion, and trying desperately to find her younger brother, Sammy (Zackary Arthur). Unfortunately, the aliens have sent spies to Earth to pose as humans, and so when Cassie teams up with Evan (Alex Roe) in her search for Sammy, she's not entirely sure if he's human, or an Other.

Add in the threat of the fifth wave of the attack (which has already included the aliens stealing the Earth's power, destroying its cities and landmarks, infecting the population with a deadly virus, and infiltrating our ranks), in which the aliens will also enter and control human minds, and that adds up to a whole lot of drama.

In a speech cribbed straight from Katniss Everdeen's playbook, though, Cassie intends to put up a fight when the aliens come calling.

"The Others see our hope as a weakness," she says, "but they're wrong."

Audiences will see for themselves when "The 5th Wave" hits on January 15, 2016.

Photo credit: YouTube