In the sequel, Dave makes Alvin, Simon and Theodore go to school, saying that it is "good for them." He does not know that the Chipmunks feel like "Chipmunks Out of Water" because of all the (human) children around. Meanwhile, Ian (after the Chipmunks dealt him a serious blow) is freed from jail and searches the world for animals who can sing and dance. He finds the Chipettes and cannot wait to make them famous and get back at the Chipmunks.