Henri et Guitare font place au rock’n‘roll.

Henry meets a friendly Guitar. The band want to put on one last show before they retire but they don't have a singer. Henry becomes a Singer for the day and with help from the rest of the band he performs a gig in front of a sellout crowd.

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.