Following Joe's diagnosis Alison removes him from school to protect him, but Paul and Rebecca take a different view. Eddie is troubled by thoughts of Nicola's ex-lover and Maurice tries to avoid his singing teacher.
Alison receives a blast from her past when speech and language therapist Maggie arrives to assess Joe - forcing the family to confront some uncomfortable truths. Eddie is determined to put his own stamp on the brewery.
The family gather for the launch of Paul's gastropub and while Maurice gets to grips with the décor, Alison tries to reconcile with Paul. However, the family and local community must come together when Joe disappears.
Life for Joe's family turns upside down as he starts at a specialist school in Manchester. Rebecca halts her plans with James, and Louise confides in a stunned Maurice.
Paul's deepest feelings about his son's autism emerge when Nicola makes a 'film' of Joe's behaviours. Eddie reaches D-Day with Holly, and Maurice makes a shocking proposal.
Alison is stunned when Maya faces deportation and Joe's behaviour reaches crisis point. Rebecca is coached on the best way to get revenge and Maurice is left regretting letting Louise go.
An 'End of Year Show' at Joe's old school brings his family members together. As Joe takes the stage, it is clear what they mean to him. But can they remain the family he knows?