The Purple Smurfs

An epidemic strikes Smurf Village when a peculiar fly bites a Smurf, causing them to turn purple and only say "gnap!" The infected Smurfs spread the madness by biting others, leading to a chaotic transformation where purple Smurfs outnumber the blue ones. Papa Smurf must race against time to discover a cure and restore order before the village is overrun by crazed purple Smurfs.