In the penultimate Season 7 episode of Grey's Anatomy, titled "I Will Survive," competition for Chief Resident turns cutthroat, while a drunken Alex Karev reveals to Owen Hunt that Meredith Grey tampered with the Alzheimer's trial. The episode also focuses on Cristina Yang's rogue surgical pursuit and Meredith's ongoing adoption journey with Zola. You can explore more about this episode on the Grey's Anatomy Fandom Wiki . "Grey's Anatomy" recap: Episode 7.21 - "I Will Survive"