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.
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.
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.
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 and Paul are in denial about the behaviour of their young son, Joe. When the extended family gather for Joe's fifth birthday it is suggested something is wrong - prompting grandfather Maurice to take action.
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.