A Power Trio of best friends, high school or middle school age, consisting of: * The Hero * A best friend of the same gender * A best friend of the opposite gender, 50% of the time an Unlucky Childhood Friend. The two sidekicks will usually be opposites in other ways, too -- one will be a straight-A student, one will be a jock; or one will be rich, one will be poor; or one will be black, one will be white (or Asian). To that end, they may double as a Power Trio. Quite often the With a Friend and a Stranger dynamic will be present. Examples of Three Amigos include: