Rebecca Hazlewood

Derek asks Meredith to work with him in neuro again; Catherine Avery comes back to Seattle Grace and takes an interest in Richard; Cristina becomes increasingly suspicious of Owen; Morgan may be falling for Alex.

The members of Oceanic 6 discover how to get back to the island, but not all of them want to return.

Sam finds that she has much in common with a patient; a woman rushes her son to the ER after he falls in gym class; the hospital higher-ups refuse to take Pratt seriously.

Abby checks out of rehab and returns to the ER; multiple victims of a fire are brought in; Harold finds new confidence.

Eleanor believes Chidi's ethics lessons are working after she subconsciously does a good deed. However, Chidi's coaching has become a full-time job for him, and he cannot enjoy paradise; Janet and Michael must take control of an emergency.