When the evil wizard Gargamel chases the tiny blue Smurfs out of their village, they tumble from their magical world into New York City.
It's Christmas at Gargamel's in 'The Thirteenth Dessert', then in 'Slithering Smurfs', Baby Smurf is turned into a snail! (S4, ep 1)
Dimwitty and Clumsy get rid of the fire truck in 'Fire Brigade on Foot', then in 'The Prettiest Pebble in the World', Gargamel leaves magic pebbles in the forest to hypnotize the Smurfs. (S4, ep 2)
Chef makes some delicious cat food for Azrael in 'Smurfalicious Catfood', and then in 'Waffle Thief', Dwayne loves Lily's waffles and keeps wanting more. (S4, ep 3)
Meteorite finds a night club in the forest in 'Disco Smurf', then in 'Dwayne's New Toy', Diaper Daddy is looking for a more loving family after being betrayed by Handy. (S4, ep 4)
Dwayne is turned into a tracker dog to help his uncle to catch the Smurfs in 'Gargamel's Doggy', then in 'Drummer Girl', Gargamel bewitches Meteorite's drum and hypnotizes the Smurfies. (S4, ep 5)
Leaf has a new, powerful magic wand, but doesn't know how to use it. She makes a mistake and turns off the moon! The Smurfs fly to the moon to turn it back on again. (S4, ep 6)
Papa Smurf accidentally gives Baby Smurf a growth potion in 'Big Baby', then in 'Don't Smurf a Sound', Gargamel gives Azrael supersonic ears and suddenly, the Smurfs can't make a noise. (S4, ep 7)
Farmer hires Yippy, Willow's plant, to watch over his crops in 'Farmer's New Pet', and then in 'Spider Smurf, Papa Smurf makes a revitalizing potion that turns him into a spider! (S4, ep 8)