Alvin sufre un accidente al irse de viaje en la cual gano el solo en un concurso y es encontrado por una joven llamada Melody, quien también cuidaba a otras 3 ardillas. Alvin por un golpe que se debió haber dado durante su accidente pierde la memoria, y no recuerda nada de su pasado.

Se acerca la navidad y las ardillas se preparaban para celebrarla con sus familia, a excepción de alvin, quien se negaba a festejarla con sus hermanos por varios motivos y creeyendo que la navida solo es un dia mas como cualquier otro y aruina el autoestima de theodore, pero durante una noche alvin recibe la visita de tres espíritus navideños que trataran de devolverle el espíritu navideño que solía tener antes (Este es un especial de navidad, espero que les guste)

There is new Chipmunk in town and he has been through too much. But after wondering the streets for a month he meets a family, the Seville's. Dave decided to take him in. Alvin one of the 3 chipmunks that lived with Dave, took a huge liking in the new chipmunk. Maybe even more than a liking.

Shadow is one of the top three teachers at Mobbious High. Very intelligent and determined to teach his students how ever he's not very good at connecting with them on a social level, that is until a new student is enrolled in his class and forces his way into Shadow's life. Knowing he could be fired if the principal found out, Shadow does everything he can to keep the student a secret, although, something might prevent them from keeping it secret for long.

This takes place right after the episode "Brittany the Body Snatcher." Upon returning home, Brittany tells her sisters about the entire visit she had just had at a certain chipmunk's house. Hearing Brittany's confession about having "feelings" for Alvin made Jeanette Miller begin to think about her own blue counterpart, Simon. The more she began to think about him, the more nervous she began to get around him during school, making Simon a bit worried about her. And with the school dance just around the corner, Alvin begins to believe that the so called "alien" will strike there next! Will Simon find out what is troubling Jeanette? Will Alvin finally stop believing in the whole "alien body snatch" myth? And for how long will Alvin be grounded for? Alvin and the Chipmunks belongs to Bagdasarian Productions

Alvin has to find love in the next thirty days, or else, something horrible will happen to him, and he has to do it with the most stubborn chipmunk he's ever met.

This is the continuation of the story "The Trip That Changed Everything". It takes place ten years after Alvin and Simon get married.

Simon has to look after Alvin while Dave and Theodore leave town for a few days.