Roger and Randy, twins from Santa Ana, arrive at the farm to visit with grandpa and grandma during summer break.

They learn about farm-related work and the importance of farmers and their farm for surrounding communities. The boys feed the chickens, gather eggs, weed the garden, and dig worms for fishing, all while having fun with their grandparents. They create wonderful and lasting memories during their time in the rural area.

Based on a true story, this bilingual picture book for children answers the question often asked by young boys and girls: How come watermelons don't grow on trees?