When Joan goes into early labour, the unorthodox new head of obstetrics is the only one who can help her. Matron has her hands full with three new pregnant girls in Stanton House.

Matron buries her doubts about the baby swap, while Joan struggles with life as a single mother. Martha vows to uncover the truth about Patty's mysterious passing. Elena fears for her life when her brother discovers the truth about her pregnancy.

Joan must compete for a permanent doctors position against her friend Bowditch as well as a sexist rival with wandering hands. Meanwhile, the Stanton House girls steal Martha's car in an attempt to learn more about Elena's betrothed.

Viv and Martha fight for their rights at the International Women's Day march. When Joan's baby falls ill, Matron is wracked with guilt over the possible baby swap. Debbie defies Matron by visiting her older, married lover.

Joan attempts to bury her grief by throwing herself back into work, but is it too soon? Meanwhile, Elena is torn between love and duty when the father of her child proposes marriage. Martha's first dinner party could end her marriage.

Rita refuses medical assistance that could save her and her baby's life. Simon confesses his role in the hit and run accident to Martha. Elena is shocked to discover her lover Ed is in critical condition in the hospital.

Joan's world is upended when her ex-fiance arrives from London. Bowditch and Martha are blackmailed over the hit-and-run accident. Rita has second thoughts about returning to the convent following the birth of her baby.

Joan makes a fateful decision about her future with Lawrence. Debbie's world is rocked when she discovers Matron has made secret deal to adopt out her baby. Viv gives Matron a dose of her own medicine.

Joan finds proof her baby was swapped at birth, while Matron embarks on a cover-up. Elena's wedding plans are ruined by Debbie's jealousy.

Joan risks everything to be reunited with her missing child. Matron makes a shock announcement when she is accused of unethical behavior. Debbie takes extreme action to locate Ed and reunite him with Elena.