In a show for young people created by Productions Totem Contemporain and co-produced by Groupe le Vivier, Hectore Navigatore is the story of a young girl who is passionate about whales and above all loves music. Hectore Navigatore wants to sing with her favourite marine mammals so she builds a unique musical instrument that can reproduce the songs of whales in her own way. But just that year, the whales have disappeared and Hectore finds herself alone on the beach. Luckily, she meets several characters who will help find her whale friends.