The Berenstain Bears (1985)

S1E4 The Trojan Pumpkin

Title: The Enchanted Gourd Plot: Papa stumbles upon a mystical pumpkin seed that quickly sprouts into an enormous, bizarre pumpkin. However, Brother and Sister uncover that Weasel McGreed is behind this strange phenomenon, plotting to seize control of Bear Country. As they investigate, the siblings must rally their friends to thwart Weasel’s cunning plan before it’s too late.