Runtime: 86 mins
Genres Adventure Animation Comedy Family Fantasy Music
Actors Christina Applegate, Kaley Cuoco, Anna Faris, Bella Thorne, Matthew Gray Gubler, Jason Lee, Justin Long, Jesse McCartney, Kimberly Williams-Paisley, Laura Marano, Tony Hale, Jesica Ahlberg, Joshua Mikel, Dennise Renae Larson, Josh Green, Mark Jeffrey Miller, Kevin Wayne, Leticia Jimenez, Carla Shinall, Nicole Davis, Stefan Gordy, Summer Corbitt, John Kap, De'Adrian Harmon, Paul Kirkland, Inder Kumar, Ethan Alexander De'Marsi, Hakim Callender, Parker Wierling, Karen Valero
Through a series of misunderstandings, Alvin, Simon and Theodore come to believe that Dave is going to propose to his new girlfriend in Miami and dump them. They have three days to get to him and stop the proposal, saving themselves not only from losing Dave but possibly from gaining a terrible stepbrother.