Cal and Ethan jointly solve a medical mystery after a man suffering from numerous undiagnosed conditions is brought in suffering an epileptic fit. When a patient is revealed as the revenge target of a taxi driver, Rita digs deeper and helps him to admit to his wife the full facts of the tragic road accident in which he was the driver. Following the discovery that Rita's husband is alive, the staff in the ED continue to struggle to accept the truth about the colleague they had been led to believe was a grieving widow. As Connie discusses her feelings on the senior staff nurse position with Tess, has Rita now ruined her chance of promotion?