Petit éclair. That's what the other boys at the orphanage call Lucas Dubois. Lucas is tired of his cowardly reputation, just as he's tired of the war and the Nazi occupation of his little French village. He longs to show how brave he can be. He gets the chance when he saves a litter of kittens from cruel boys and brings them to an abandoned stable to care for them. There he comes upon a stranger who is none too happy to see him: Alice, the daughter of a horse trainer, who is hiding her filly from German soldiers. Soon Lucas begins to realize they are not the only ones in their village with secrets. Emboldened by the unlikely heroes all around him, Lucas is forced to decide how much he is willing to risk to make the most courageous rescue of all.