A team of special effects artists transforms actor Jace Norman into a completely unrecognisable substitute teacher who is ready to give students at Luther Burbank Middle School an unforgettable surprise.

Multi-talented celebrity Lilly Singh goes undercover as a strange substitute teacher at Woodrow Wilson Middle School in Glendale, California, and pushes the students to their limits with her bizarre behaviour.

Grammy Award-winning performer Ne-Yo goes undercover and pranks middle school students; he disguises as a master chef with a disastrous recipe, an out-of-control '90s rocker, and a quirky artist.

Actor Rico Rodriguez goes undercover as a wacky neat freak, an intense karate instructor, and a middle school sub, while his sister Raini Rodriguez pulls the strings behind the scenes.