The October 6 episode of Grey's Anatomy is all about the men. What is it about them?

In that installment, the fourth of the eighth season (beginning tomorrow night with a two-hour event, which is technically two episodes), the doctors of Seattle Grace are called upon to man up like never before.

That's because a stampede at a comic book convention ends up causomh an influx of colorful characters in the ER - blurring the lines of fantasy and reality. We can only imagine the chaos about to ensue.

Baby daddy Mark shows his softer side with daughter Sofia when Arizona and Callie go out of town (we've heard that doesn't go so well) but at work he continues to give Jackson a hard time.

Meanwhile, Ben returns to the ER, only to find that Nurse Eli has moved in on Bailey; and the male doctors bond over frustrations with women on the much-anticipated all-boys episode of Grey's Anatomy.

Click to enlarge and scroll through photos from "What Is It About Men" below:

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