Mistaken identity is usually not a good thing, especially when you're a humble musician imprisoned because you were believed to be a warrior. Such is the fate that befalls young Capell, the hero in Infinite Undiscovery. When the evil Dreadknight shackles the life-giving moon to the planet, a warrior named Sigmund attempts to free the moon, but fails. When an attempt to capture Sigmund is made, poor Capell is caught instead, throwing the musician on a path he doesn't wish to take.
Infinite Undiscovery is a single-player game and you play as Capell. You're accompanied by a group of AI allies that help you a la Marvel Ultimate Alliance.