That's because Saturdays mean time with Grandma Stella. The two of them love going on adventures downtown to visit the dinosaur museum and ride on the carousel! Even when they stay in, George and Stella have fun together, making cinnamon rolls without popping open a tube and sharing the biggest, best hugs. Then one day Stella is gone, and George is ready to cancel Saturdays. But when a new addition to the family arrives, George finds a way to celebrate the priceless memories he made with his grandma--while making new ones too.