Returning from maternity leave, Maryam finds herself immediately on the front lines, Catherine sets her sights on a consultant job, and Helen's marital problems emerge at work.
Things are looking up for Catherine as Lars flies in from Sweden to be a father to Elis. Until, that is, she discovers he’s brought his hot, judgy wife Brigitta.
A routine operation takes a critical turn for Catherine, Maryam wrestles with the idea of adopting another child, and the extent of Guy's alcohol problem becomes clear to Helen.
Motherhood throws everything at Catherine as she fights Jack for the consultant job, Maryam admits how she's feeling, and Helen makes a shocking discovery.