The trolls are all ridiculously happy even though they are, at any moment, likely to be eaten by the monstrous Bergens. (I don’t know why they’re called Bergens, except that trolls are a thing from Scandinavian mythology and Bergen is a city in Norway, except the Don King troll dolls originated in Denmark, but the Bergens do look more like traditional trolls, big blobby mean-faced — and mean-tempered — creatures. I’m so confused.) The only unhappy troll is Branch (the voice of, in a remarkable coincidence, Justin Timberlake: Runner Runner, Inside Llewyn Davis), a sort of extreme survivalist who is camou-colored, and has planned and stockpiled for the day when the Bergens come to eat them all (he has a bunker). When this day arrives, thanks to a loud troll dance party that gave away their secret-hiding-place village, troll leader Princess Poppy (the voice of Anna Kendrick: Mike and Dave Need Wedding Dates, Pitch Perfect 2) enlists Branch in a mission to save everyone from being eaten.