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.

A gruelling night shift leads Helen to confide in Jack, and Maryam and Catherine respond to an emergency on a night out.

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.

Maryam and Catherine speak up at the investigation panel, Helen is presented with an offer, and all three women make decisions about the future.