Mickey, a construction laborer, and Minnie, a box lunch delivery person, work together at a construction site. Pete, the foreman, supervises them. Mickey's distraction towards Minnie leads to accidents, including the loss of important blueprints. Pete's theft of Mickey's lunch prompts Minnie to offer him a replacement. As Mickey eats, Pete kidnaps Minnie, prompting Mickey to fight back. Minnie's timely intervention with hot rivets turns the tables, allowing them to escape, but not before causing chaos and destruction on the construction site.
Building a Building
Mickey Mouse's steam shovel crew is in full swing, with Pegleg Pete as his trusted foreman and Minnie Mouse running the box lunch stand. But when Pete's advances towards Minnie go too far, Mickey must step in to save the day and restore order to the construction site.