It's a dream come true for Mason O'Malley: starting her intern year with her twin brother, George, at Seattle Grace. She has never wanted something more, yet. Will Mason be able to make a name for herself with such an intelligent group of interns, or will the drama that unfolds become too much of an obstacle? Mason, a dreamer, just wants to take the world by storm, and she wants to bring the people she loves most along with her.