Henri devient chef de chantier et construit une maison à l’aide d’un plan.

Henry meets a Digger. There is a house that needs to be built but with the builder off with a tummy ache it's up to Henry to save the day. Henry becomes a Builder for the day, he scoops, saws and paints away until the house is finished.

Henry is a young boy who desires to learn something new in his everyday life. In each episode, he meets a new object and his imagination comes to life as he learns more with each new encounter. Henry creates so many friendships and everyone he meets is eager to help him find the answers to every new question.