<Tr> <Th> 190 </Th> <Td> 18 </Td> <Td> "Idle Hands" </Td> <Td> David Greenspan </Td> <Td> Gabriel Llanas </Td> <Td> March 21, 2013 (2013 - 03 - 21) </Td> <Td> 9.39 </Td> </Tr> <Tr> <Td_colspan="7"> The ER reopens after extensive remodeling and includes new state - of - the - art technology . Meredith worries that something might be wrong with the baby . Cristina is frustrated when her new administrative duties cut into her medical research time . Callie and Arizona work on improving their sex life . Bailey is pushing for the hospital to sponsor her genome sequencing project . Meredith starts "catastrophizing" about potential congentinal defects before she and Derek find out the sex . </Td> </Tr> <Tr> <Th> 191 </Th> <Td> 19 </Td> <Td> "Can't Fight This Feeling" </Td> <Td> Mark Jackson </Td> <Td> Meg Marinis </Td> <Td> March 28, 2013 (2013 - 03 - 28) </Td> <Td> 9.02 </Td> </Tr> <Tr> <Td_colspan="7"> The hospital is overrun by patients following a gas tanker explosion . Owen bonds with a boy whose parents were both injured in the crash . Meredith takes interest in the case of a boy whose mother believes he is more sick than the tests indicate . Callie prepares for her TED conference speech with help from Arizona . Meredith asks Dr. Bailey to map Zola's genetic history and her genome to check for Alzheimer's genetic markers . </Td> </Tr>

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