Following the events of Age of Ultron, the collective governments of the world pass an act designed to regulate all superhuman activity. This polarizes opinion amongst the Avengers, causing two factions to side with Iron Man or Captain America, which causes an epic battle between former allies.

Based on the best-seller book 'The Little Prince', the movie tells the story of a little girl that lives with resignation in a world where efficiency and work are the only dogmas. Everything will change when accidentally she discovers her neighbor that will tell her about the story of the Little Prince that he once met.

Pittsburgh, Pennsylvania, 1991. High school freshman Charlie is a wallflower, always watching life from the sidelines, until two senior students, Sam and her stepbrother Patrick, become his mentors, helping him discover the joys of friendship, music and love.