TJ and her friend Abi have got some sunflower seeds. Who's going to grow the biggest, tallest, sunflower? The race is on in TJ's back garden - TJ so much wants her flower to be the tallest. But TJ and Abi don't realise they have competition. TJ's little sister, Josie, has got a seed, too, and she's found a very clever place to grow it ...Now who will be the winner?