Alvin and the Chipmunks: The Road Chip is a 2015 American familycomedy film directed by Walt Becker and written by Randi Mayem Singer and Adam Sztykiel. The fourth installment in the Alvin and the Chipmunks film series, it stars Jason Lee, Tony Hale, Kimberly Williams-Paisley, and Josh Green with the voices of Justin Long, Matthew Gray Gubler, Jesse McCartney, Kaley Cuoco, Anna Faris, and Christina Applegate. David Cross who plays Ian Hawke did not reprise his role in this film.
Alvin, Simon, and Theodore, along with The Chipettes – Brittany, Jeanette and Eleanor – set up a surprise birthday bash for Dave that also serves as a good luck party for The Chipettes, who are scheduled to be guest judges on American Idol. Alvin invites and hires many people and celebrities to the dismay of Simon, before Dave returns home in dissatisfaction. Nevertheless, Dave agrees to take them to mini-golf, and meet Samantha, the woman he has been dating for the past few months. While the Chipmunks like Samantha, her son Miles is a bully who physically abuses the trio. Later, the Chipmunks find an engagement ring in a bag Dave brought home and believe that he’s going to propose to Samantha. They try to steal the ring but are unsuccessful.
Dave has to produce a record for rising pop artist Ashley Grey in Miami and decides to bring Samantha along with him. The Chipmunks and Miles are staying together, but they agree to head to Miami to sabotage the proposal. The Chipmunks drug three squirrels and dress them up in their clothes to fool their hard of seeing neighbor Ms. Price, who was tasked with looking after them. The Chipmunks travel on a plane, but Theodore lets out several animals which causes an emergency landing and brings the ire of unscrupulous Air Marshal James Suggs, who resents the Chipmunks because Suggs’ girlfriend left him for being so into them at the time. As a result, they are put in the No-Fly list.
The Chipmunks head to a bar and perform, but this is interrupted by Suggs and they cause a bar brawl as a diversion. They jump into a cab sitting outside. After the cab driver learns they cannot pay him, he kicks the four out of the cab. The Chipmunks and Miles rest, and he reveals that his dad left him when he was five years old. They raise money to take a bus to New Orleans, and sing “Uptown Funk“, which gets the attention of Dave when it is broadcast on live television, and allows for the Chipmunks to cause Suggs, who has followed them to New Orleans, to get drunk.
Dave and Samantha meet up with Miles and the Chipmunks at Louis Armstrong New Orleans International Airport and proceed to take them to Miami. Because the Chipmunks are now on the No-Fly List, Dave has to drive the boys over. When they get there, Alvin reveals that he stole the ring from the container, thus ruining the proposal. However, Miles had bonded with the Chipmunks and was upset that they were celebrating over this. He crosses the street with his headphones on and is almost hit by a car, but the Chipmunks swing Theodore and push Miles out of the way, saving his life. They agree to give the ring back.
Source Page – Wikipedia