Meet with the Libner brothers: Marvin (Daniel Stern), the oldest, is a sergeant in the U.S. Air Force. Buddy (Arye Gross), the middle child, is a timid dreamer. Bobby (Patrick Dempsey), the youngest, is just really actually a handsome cop in reform school. As kids, they struggled with a lot so that they speak. In the summer of 1963, their tough and eccentric father, Fred (Alan Arkin), gives them an activity: to create a 1954 Cadillac, bought for their own mother, Betty (Rita Taggart), by Detroit to Miami. Since the trip goes on, the 3 brothers begin to re connect with each other and fight .