In the first trailer for "Trolls," the Trolls are under attack from the Bergens, and only Poppy -- their optimistic leader -- and a pessimist called Branch can save them.

According to the film's official description,

DreamWorks Animation and 20th Century Fox have released a NEW trailer for TROLLS! From the genius creators of SHREK, TROLLS stars Anna Kendrick as Poppy, the optimistic leader of the Trolls, and her polar opposite, Branch, played by Justin Timberlake. TROLLS also stars Gwen Stefani, James Corden, Russell Brand, Icona Pop, Ron Funches and Kunal Nayaar. Together, the Trolls must embark on an adventure that takes them far beyond the only world they've ever known.

Directed by Mike Mitchell (“Shrek Forever After”) and Walt Dohrn (“Donkey’s Caroling Christmas-tacular”), the film introduces the overly optimistic Trolls, who enjoy singing and dancing, and the pessimistic Bergens, who love nothing more than to eat the Trolls.

Featuring original music from Justin Timberlake, the film opens November 4 nationwide.