After a mysterious illness strikes children from military families, Gibbs and the team investigate the cause. Meanwhile, Abby and Jimmy partner with the Naval Medical Research Center to determine the strain of illness, all in hopes of delivering a cure before the holidays. Also, Vance struggles with forgiveness as his estranged father-in-law makes a surprise visit to his home.moreless
The CSI team is brought in to investigate a reality cooking show when contestants accidentally eat human flesh during a competition.
The doctors try to cope with the heartache and injuries caused by the plane crash; everyone at Seattle Grace struggles to return to normalcy amidst the chaos.
The residents agonize over their oral boards, reliving every answer they gave during their exams; Arizona's close childhood friend comes to Seattle Grace for medical help; the doctors work on a patient who is missing one third of his skull; and Julia asks Mark to start a family with her. Meanwhile Catherine tells Richard that one of his residents has failed.moreless
Richard performs his 10,000th surgery on a pair of bickering sisters who come into the hospital for a liver transplant; Derek and Lexie take on a neuroblastoma case that has been previously deemed inoperable; Teddy and Cristina cross the line when they go against Owen's orders and try to steal a case from Alex and Dr. McQueen; Ellis Grey's shadow looms as Meredith searches for a specialty; meanwhile Adele is brought into the hospital after she is found wandering the streets.moreless
Owen stresses teamwork and moves his leadership role over to the baseball field when he signs the doctors up for a baseball league, pitting them against their biggest competition, Seattle Presbyterian Lexie tries to hide her jealous rage when she sees Mark with a new woman, but her emotions get the better of her Alex fights to keep Zola at Seattle Grace after it is suggested that she be moved to another hospital due to a conflict of interest with Meredith and Derek. Richard scolds Meredith and Bailey for their feud.moreless