Lucy's owners have just had a baby. Concerned for the safety of their child but worried that abandoning Lucy would be a death sentence, they are looking to Cesar for help. Lizzie, a Red Tick Elizabethan beagle, seems to be on an endless mission. She is obsessed with running, inside or outside. She has worn the grass in the Ortopan's backyard down to the soil, creating her own track. Will Cesar be able to restore balance and keep everyone safe?