The mystical city of K'un-Lun lies in ruins. The chi that fuels Danny Rand's power is wavering. Can there be any future for the Iron Fist? Danny must push himself to the breaking point, finding fights to prove his worth. But a bigger battle than he can handle may have found him: On a mysterious island stand seven deadly kung fu masters. Can Danny run a gauntlet through them all and regain his place in the world?