In theaters: December 23rd, 2015

Description:

Through a series of misunderstandings, Alvin, Simon, and Theodore come to believe that Dave is going to propose to his new girlfriend in New York City 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.

Director: Walt Becker

Writers: Adam Sztkiel, Ross Bagdasarian

Genre: Comedy