
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.