The story starts with Randy and his classmates going on a school field trip to Norrisville's volcano. Mrs. Driscoll made a five-foot rule to prevent students spitting into the volcano. Randy and Howard were partners with Bucky and Flute Girl because Mrs. Driscoll knew that putting Randy and Howard together will make them have a chance to spit into the volcano. Randy managed to convince Bucky and Howard to make use of the five-foot rule and forced Flute Girl to follow them. Randy and Howard spited into the volcano and took a photo. Randy wanted to eat nachos for celebration, but Howard finish them. One piece was left and it caused an argument between them. The last nacho fell into the volcano. It caused an irruption.