Gilbert spends a sunny summer afternoon obediently keeping watch over his napping grandpa to shoo the pesky flies away. Unsure of exactly how long he's really supposed to sit there, watching for non-existent bugs, he passes time contemplating his ever-changing family: His grandma Sarah recently died, a new baby is on the way, his siblings and cousins race in and out. While the temptations to abandon his post beckon, Gilbert's loyalty to his grandpa stays true, and his quiet dedication finds a sweet reward.