Bailey is pretty funny when she tries to keep calm faced with this situation. On the other hand, she still doesn't come to terms with the idea that Ben is training to become a firefighter. This attack allows Richard to show and teach how to find a way to cope like in the "Stone Age".
It's also Jo's first day as chief resident. I liked when she is trying to imitate Bailey and be like her. The duo Arizona / Carina is working well. I think Carina brings some freshness to the show. The series keeps going to develop the relationship between Jackson and Maggie. I still can't get used to this idea, I find it pretty weird.
The mid-season finale ends on a good cliffhanger: Jo is paralyzed by finding herself face to face with her husband. Jo's husband suddenly comes at the hospital on the Cyber attack's day: it's a strange coincidence, isn't it? !! But is it really a coincidence? Will Alex succeed in saving the child? Unfortunately I think it's already too late.
Roll on the next episode! Note that this episode was directed by Kevin McKidd: an excellent actor and director!