An over confident teen with a magical weapon and a handful of imperfect gods join forces against an evil queen and her army of giants. The young blacksmith Thor lives happily with his single mother in a peaceful little village. The legend says he is the son of Odin, the King of the Gods. Therefore the fellow villagers believe that the terrifying Giants will never attack them. But they are terribly mistaken. A Giant army crushes the village and takes the villagers to Hel, the Queen of the Underworld. Thor is knocked out and left behind. He sets out to save his friends with the hammer Crusher - who claims to be a magical weapon!

The Smurfs team up with their human friends to rescue Smurfette, who has been kidnapped by Gargamel since she knows a secret spell that can turn the evil sorcerer's newest creation - creatures called the Naughties - into real Smurfs. The evil wizard Gargamel creates a couple of mischievous Smurf-like creatures called the Naughties that he hopes will let him harness the all-powerful, magical Smurf-essence. But when he discovers that only a real Smurf can give him what he wants, and only a secret spell that Smurfette knows can turn the Naughties into real Smurfs, Gargamel kidnaps Smurfette and brings her to Paris, where he has been winning the adoration of millions as the world¹s greatest sorcerer. It's up to Papa, Clumsy, Grouchy, and Vanity to return to our world, reunite with their human friends Patrick and Grace Winslow, and rescue her! Will Smurfette, who has always felt different from the other Smurfs, find a new connection with the Naughties Vexy and Hackus or will the Smurfs convince her that their love for her is True Blue?

When the evil wizard Gargamel chases the tiny blue Smurfs out of their village, they tumble from their magical world into New York City. When the evil wizard Gargamel chases the tiny blue Smurfs out of their village, they tumble from their magical world and into ours in fact, smack dab in the middle of Central Park. Just three apples high and stuck in the Big Apple, the Smurfs must find a way to get back to their village before Gargamel tracks them down.