Senior Sergeant Arnold Kipps is having the worst day of his life. His ex-partner and ex-flame Ellie McKay has returned to Nompton to shut down his police station, just as an ancient evil is awakened by the Gnome Queen who unleashes a bloodthirsty horde, plunging the town into chaos.

Now, Arnold and Ellie must reunite to save Nompton from total destruction. With a ragtag team of misfit cops, rebellious teens, and an overly ambitious mayor, they'll take on a growing army of killer gnomes, and try to stop the Gnome Queen's rampage. Because these lawn ornaments aren't just angry. They're out for blood.