Alvin 4: Return of the munk is a 3D 2013 film and the fourth movie in the series. The film was directed by John Schultz, known for Judy Moody and the Not Bummer Summer.
The chipmunks discover a time machine called the Dimensionator, but instead of going back or forward in time, it lets them go to an alternate universe where they are part of the 1,958th Battallion of the Chipmunk Refuge.
Jason Lee does not return to play Dave in this film. Instead, Zachary Levi (Toby in "The Squeakquel") plays him.