Set in 50 B.C., Asterix and Obelix are living in a small but well-protected village in Gaul, where a magic potion concocted by Druids turns the townsfolk into mighty soldiers. When Roman troops carve a path through Gaul to reach the English Channel, Caesar and his aide de camp Detritus discover the secret elixir and capture the Druid leader who knows its formula, and Asterix and Obelix are sent off to rescue them.
In a rural French village, an old man and his only remaining relative cast their covetous eyes on an adjoining vacant property. They need its spring water for growing their flowers, and are dismayed to hear that the man who has inherited it is moving in. They block up the spring and watch as their new neighbour tries to keep his crops watered from wells far afield through the hot summer. Though they see his desperate efforts are breaking his health and his wife and daughter's hearts, they think only of getting the water.
In this, the sequel to Jean de Florette, Manon has grown into a beautiful young shepherdess living in the idyllic Provencal countryside. She plots vengeance on the men who greedily conspired to acquire her father's land years earlier.
