Erwan, a strapping Breton who clears mines for a living, is shaken when he discovers that his father is not his father. Despite his affection for the man who raised him, he quietly sets out to find his biological father, and succeeds in locating Joseph, an endearing old codger he takes a liking to. Just when things look settled, another unexpected “bomb” hits Erwan in the form of Anna, an elusive nymph.

Claire and Maurice have to take the whole family to Claire's father's funeral. This tightly knit family is not only composed of Claire's vegetarian son, Alex, who's secretly fond of Maurice's daughter, Lucie, the teenage rebel, but also Claire's brother, a poet living under his sister's roof; without forgetting young Prune, Claire and Maurice's daughter, who will develop a passion for the country's emblematic cows. They must all strive to get along during the road trip to Willouby.