The townsfolk of Cavity drink sweet, fizzy sodas and have big brown stumps instead of nice, white smiles. Everyone, from little old ladies to tiny little babies, burps morning, noon and night. But when Rodeo Ron rides into town astride his milkshake cows, Cavity's in for a big surprise! The local soda makers, Frothy and Fruity, offer him their hometown special, a soda soooooo sweet, that it even makes Rodeo Ron burp! And before he can say 'diggidy-dang', they challenge Ron to a shake-off ...Frothy and Fruity mix up their sugars and syrups, they burp and bronk and fizzle with rage, but their sickly sweet fizzy sodas are no match for the delicious, fruity shakes from Ron's coloured cows ...