Secret Society of Second Born Royals introduces Sam (Peyton Lee), a rebellious princess second in line to the throne of the kingdom of Illyria. Just as Sam’s disinterest in the royal way of life is at an all-time high, she is stunned to learn that she has superpowers and belongs to a secret society with a longstanding tradition of covertly keeping the peace throughout the kingdom. The movie follows Sam’s adventures at a top-secret training program for a new class of second born royals tasked with saving the world.