Grandpa Lou takes over Stu's job of chaperone for the class field trip to the Human Body museum, and starts to embarrass Tommy. Meanwhile, Dil is hospitalized for a throat infection.

The kids try to get a date to the Valentines Day school dance with their crushes.

An older girl, Francine, picks on Tommy. Angelica is loving every minute of it! Does Francine like Tommy, or is she just a pest?

When Chuckie's biggest competition in the election for School Safety Commissioner is Dil's imaginary alien friend Izzy, you would think he would have it in the bag, right? WRONG! When Izzy becomes more popular than Chuckie, can he even rely on his friends to help him win?

Angelica falls for Darryl, but she gets too nervous to talk to him whenever he is around. Her mom loses her CEO job and decides to become a full-time mom. Then, they get stranded together on a sail boat on the same day as Darryl's rock concert.