When Toby is invited to a picnic, his autistic traits are triggered. Sad he cannot go, he decides to host his own picnic with his closest friends, who have a better understanding of his issues. Along with his best friend Theo he navigates a journey which enlightens the reader to many of the symptoms of autism and some of the ways Toby copes with them. The reader is introduced to the characters in the book with accompanying illustrations which culminates in a very special achievement.