Cillian Darcy Goes to Waterloo Road (Series Four)

Premise
The fourth series picks up after the events of the third series finale, which involved a fire almost destroying the school and left the fate of several staff and pupils unknown.

The Kelly family are introduced as prominent characters this series, often referred to as the "family from hell". The family consists of alcoholic mother, Rose Kelly, and her five children, who all enrol at Waterloo Road and bring many problems with them. Later in the series, a major plot sees pupil Maxine Barlow (Ellie Paskell) led to tragedy after getting together with Earl Kelly (Reece Noi).

Other plots this series include new Head of PE Rob Cleaver (Elyes Gabel), who trains pupil Bolton Smilie (Tachia Newall) using pills that give him an unfair advantage and more of Head teacher Rachel Mason's (Eva Pope) secrets being exposed following the arrival of her sister, as well as her nephew. Also, troubled pupil Chlo Grainger (Katie Griffiths) giving birth and, finally, the return of former Head of Pastoral Care Kim Campbell (Angela Griffin), who smuggles a baby girl into the country on her return from Rwanda.