Ten-year-old Tally had high hopes for Year 6.
Being in the top class at school means a whole host of privileges, but even better than that is the school production - and Tally is convinced she'll win the lead role. But at home, things aren't going so well. Mum and Dad have been making Tally feel pressured and upset, and Tally wishes things didn't bother her so much - but they do, and sometimes she feels so misunderstood and frustrated, she could explode.
Then Tally's mum and dad tell her about something she's never heard about before. Something called autism. And everything changes.