While in the 31st Century, Supergirl believes she is undergoing Tarukor, a Kryptonian rite of passage where a Kryptonian undergoes a lengthy dream-state before being deemed an adult, much to the dismay of several Legion of Super-Hero members. Cosmic Boy and Saturn Girl officially offer Supergirl a chance to join the Legion, which she accepts. All across the planet, Supergirl is received with cheers and praise, being a monumental hero from her time in the 21st Century. Certain members of the Legion try to inform her that she is in reality and not a dream, but some coincidental things occur that seem to argue that point. Meanwhile, the Dominators are scheming to handle the planet Earth.