Undercover High follows seven young adults, ranging in age from 21 to 26, who embed themselves for a semester in Topeka, Kansas' Highland Park High School. The participants pose as typical students–attending classes, making friends and participating in school clubs and activities–to provide an inside look at what it's like to be a teenager today. Each with personal motivations driving them to help enact positive change, the participants, unaware of each other, arrive on campus where only the school administrators and select members of the community know their true identities and the reason for their semester-long stay. From bullying and the pervasiveness of social media to the struggle to excel in the classroom and navigate evolving social standards, participants discover the challenges and complexities, both new and familiar, facing today's teens.