In this story, Nat, Snappy, and Slouchy, who were now Smurflings, see that Smurfette is lonely because there is no other female Smurf she can be friends with.
After finding out how Smurfette was created in the first place, the three Smurflings go to Gargamel's castle to get the page from his spell book on how to create a Smurfette, then gather the ingredients together and use Papa Smurf's laboratory to create what they think would be another female Smurf like Smurfette. Instead, they create a female Smurf who's physically no older than they are, and because of how terrible she initially treated the other Smurfs upon her "birth", she was given the name Sassette.
Papa Smurf finds out what the Smurflings have done and punishes them accordingly. But Sassette's creation comes at a terrible price: Gargamel, finding out that the Smurfs were intending to create another female Smurf, casts a spell on the blue clay used to make the Smurfette so that it would explode upon exposure of the noonday sun.
Papa Smurf finds that out and so creates a formula that would prevent Sassette from exploding. But Sassette, upon realizing – thanks to Snappy – that her created form was due to the evil wizard Gargamel, runs away from the village to seek out the one whom she calls Papa...much to the dismay of Gargamel himself, who runs away from Sassette to prevent her from exploding within his vicinity.
With much reasoning from both Papa Smurf and Gargamel, Sassette rejoins the Smurfs, is prevented from exploding, and becomes adopted by the Smurfs, while Gargamel, who wonders why Sassette didn't explode around noonday, revisits where he found the blue clay, and gets a face full of explosions when the noonday sun finally lights up the clay.
Tropes seen in this episode:
- Hoist by His Own Petard: In the closing act, Gargamel is puzzled as to why there has been no bloodshed from his living time bomb ... only to realize (too late) not only that Papa Smurf reversed the earlier spell, but that the clay from the Squeamy Squirming Grotto still was under the spe ... KABOOM!!!!! And the force of the explosion sends Gargamel and Azrael rocketing through the sky ... to his Mummy's, for more supper!
- Hired Gun: Sassette is an unknowing one; Gargamel casts a spell on the clay used to create the new female Smurfling with a potion that would cause her to explode with the noonday sun, killing anyone and anything nearby. Averted in the end, when Papa Smurf realizes what's going on and races to find Sassette (who has run away) and reverse the spell.
- Hypocrite: Papa Smurf and the other male adult Smurfs got mad at the Smurflings for creating Sassette, despite the fact they were the ones who hurt Smurfette's feelings in the first place.
- Just in Time: Just seconds before noon, Papa Smurf manages to splash a formula on Sassette, reversing a spell that would have caused her to explode and kill most (if not all) of the Smurfs.
- Luke, I Am Your Father: Inverted; Sassette refers to Gargamel as "Pappy Gargamel."
- Meaningful Name: Her name was initially due to her troublemaking ways; in time, it would fit due to her spunky, sassy yet sweet demeanor.
- A Mistake Is Born: When Papa Smurf punishes the Smurflings by giving them extra chores and Sassette comes to see what's going on, Snappy snaps at her, saying that they're being punished because they created her (using Gargamel's spell book) and implied that Papa Smurf didn't want her and that she wasn't a real Smurf. Sassette is crushed and runs away, and once Natural tells Snappy he was a bit rough on her, Snappy shows remorse ... but is it too late for sorry? In the end, of course, Papa Smurf tells her that she is every bit a Smurf and is a welcome part of the Smurf being. For once, Gargamel – but only because he knows that she is literally a ticking time bomb – agrees.
- No Good Deed Goes Unpunished: Although the Smurflings did tell the truth about wanting to make Smurfette a new sister and a friend, Papa Smurf thinks it's "no excuse" and punishes them by giving them extra chores for breaking the rules of Smurfdom.
- No Indoor Voice: Sassette's loud, incessant, (very) off-key singing of the "Smurf Song."
- Was Too Hard On Her: Nat admonishes Snappy for his words said in anger to Sassette.
- Why Am I Ticking?: Gargamel – aware that a Smurf had taken some clay from Squeamy Squirming Grotto to create a new Smurf – creates a spell to cause the clay to explode (and kill anyone within several hundred yards of it) with the noonday sun. This eventually backfires on Gargamel, when Sassette comes to live with him and the spell had yet to be broken.
