Mary-Claire tries to keep her relationship with Harry casual, but while they work together to diagnose a patient's condition, she realises that she has developed feelings for him. Sacha tries to be there for Rachel, but seeks help from her teacher, Mr Kerrigan. He soon works out that Mr Kerrigan is the father of Rachel's baby. When he tries to report him to the police, Rachel threatens to cut Sacha out of her life. Meanwhile, Adele suspects Mo has been avoiding her due to her feelings for Jesse, but soon learns that they are not sisters.