Molly Kidder

The Seattle Grace staff continue to mourn George's death; George's mother arrives but is unsure of what to do with his organs.

Meredith and Derek rediscover the morning-after side of their relationship; the chief learns the hospital has slipped in the national rankings.

Meredith, Cristina, Izzie and Alex spend their first day as residents with their own interns, including George, repeating his internship after failing his exams, and Meredith's half-sister. Cristina searches for Burke, who is nowhere to be found and Richard resumes his position as chief of surgery.

The surgeons work as a team to free a boy from a hardening block of cement; Izzie helps Alex care for an ailing Rebecca; Meredith and Derek have one last chance at a positive result in their clinical trial.

Major Owen Hunt returns to be the head of ER trauma; Meredith finds an old doll her mother gave her when she was 5.

The new interns are dazzled by the skill level of fellow intern George, while Lexie helps keep his "repeater" status a secret; Meredith half-heartedly helps Lexie with her first emergency patient.