Casts:
Justin LongMike SeniorJosé D. Xuconoxtli Jr.Josh GreenJesse McCartneyZeeko ZakiEddie SteeplesWalt BeckerJeremy Ray TaylorKeith Arthur BoldenJason LeeKimberly Williams-PaisleyTony HaleJoshua MikelAnna FarisChristina ApplegateMatthew Gray GublerBella ThorneKaley Cuoco
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.