Title: What Is It About Men?
Air Date: October 6, 2011 at 9:00 PM PDT
A stampede at a comic-book convention leads to an array of colorful characters in the ER. Also turning up in the ER: Ben (Jason George) —who discovers that Bailey has something going with Eli (Daniel Sunjata). Meanwhile, Callie and Arizona leave baby Sofia with Mark when they go out of town. He treats her better at home than he treats Jackson at work. And the male doctors find they have something in common: their frustrations with women.