After avoiding the Bergens for 20 years, Princess Poppy (Anna Kendrick)’s loud party attracts their attention, leading to a number of Trolls being captured.
Alongside Justin Timberlake’s Branch, a paranoid and disgruntled Troll, she then sets out to save her pals.
However when the Bergens, which are large creatures that are never happy, discover them they realize that they can get a fleeting moment of joy from eating a Troll.
Trolls was inspired by the hugely popular dolls from the 1960s, with the film revealing that these teeny tiny creatures live in a perpetual state of happiness that sees them singing, dancing, and hugging all day long.