Rob returns to An Nuacht to find the office in mayhem.

Suspicion surrounds a retiree when local teenager, Victoria McIlroy disappears. The team are amused to learn a hitherto unknown fact about Cormac. A thoroughly unamused Gerry finds himself playing 'fly-on-the-way' to a local taxi-driver who proves to be quite the character. An emphatic Alix is faced with a dilemma when she finds Victoria safe and well in a very surprising place. Rebecca's heavy spending leads to a difficult conversation with the bank for Rob.

A disturbance at the office brings Diarmuid and Rob out in force only to find that the office has been ransacked and a young man lies gravely ill on the ground. An even worse sight awaits Diarmuid on the roof - the sight of his teenage daughter falling over the edge. While Erin fights for her life in hospital, while the young man loses the battle for his, it is revealed that a so-called 'legal-high' is to blame.

While it looks as though Erin may be through the worst, Diarmuid struggles to atone for his absence as her father. Rob faces difficult times when a doctor stresses the importance of Rebecca remaining on her medication while Rebecca secretly disagrees.