Summertime is a welcome time to rest for most staff and students, but for custodians around our district, there's little time to relax. As Challenger's Nick Gonzalez steps into a lift to dust overhead lights in the school's 300 wing, Viengkhong and Andrew scrubbed railings, gutters and floors until the building gleamed. In this video, we take a short trip back in time to appreciate some of the behind-the-scenes work leading up to the first day of school.