The Smurfs 2 creations, evil Smurf-like creatures called the Naughties, named Vexy and Hackus, Gargamel plans on opening a portal to the Smurf village by using the Eiffel Tower as a conduit so that he can kidnap Smurfette and, through her, get Papa Smurf's secret formula for creating Smurfs. However, as the portal he created is not big enough for him to go through, Gargamel sends Vexy through to the portal to grab Smurfette and bring her to Paris. The Smurfs witness the abduction of Smurfette and inform Papa Smurf, who uses his magic to create crystals that allow several of his Smurfs
The Smurfs: The Legend of Smurfy Hollow also explained how the film was a celebration of the original Smurfs comic books and comic strips, saying: "When the team at Sony Pictures Animation initially started working on "The Smurfs: The Legend of Smurfy Hollow", we thankfully all shared a very strong vision of the sort of movie that we wanted this home premiere to be. Which was this celebration of the original Smurfs comic books & comic strips that used traditional, hand-drawn animation as a way to harken back to all that strong line work and design. And as someone who started his career in 2D, I'm just