A major storm is brewing on tomorrow's Grey's Anatomy, in more ways than one.

In a sneak peek from "Readiness is All," Alex comforts a battered Jo after a shocking altercation that apparently turned violent, and then abruptly leaves, presumably to confront her attacker.

Meanwhile, Arizona is living on the edge by getting her flirt on, and Shane confides in Bailey - who has him filing records - that he feels he's being blackballed after what happened with Derek.

Finally, Owen continues to struggle with his emotions regarding Ethan - and what Cristina told his family regarding his father's condition. How do you think things will turn out with the boy?

Watch four scenes from the penultimate Grey's Anatomy Season 9 episode:

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.