The Chipmunks believe that Dave plans to propose to his new girlfriend in Miami.--and dump them. They have three days to get to him and save themselves not only from losing Dave but also fro... Read allThe Chipmunks believe that Dave plans to propose to his new girlfriend in Miami.--and dump them. They have three days to get to him and save themselves not only from losing Dave but also from gaining a terrible stepbrother.The Chipmunks believe that Dave plans to propose to his new girlfriend in Miami.--and dump them. They have three days to get to him and save themselves not only from losing Dave but also from gaining a terrible stepbrother.