It's Maya's wedding day and while Violet helps Sam prepare, a furious Naomi still refuses to take part as she works with Addison and Pete to save a premature baby. Meanwhile, Cooper becomes suspicious of Charlotte's new boyfriend and thinks that he may be abusing drugs.

Cooper and Charlotte take Erica to Seattle Grace to meet with Derek, Lexie and Amelia regarding a very risky surgery; Scott tells Violet that he would like to take their relationship to the next level; and Addison finds herself caught in the middle of Sam and Jake's fight about a patient. Meanwhile, Sheldon warns Sam to be cautious as he deals with the return of his sister, Corinne.