Plant loving Hilda, has created a museum where she preserves endangered and rare plants from all over the world. Meanwhile Attilem, a new genetically modified cereal, is launched on the market. Growing with little water and fertilizer while generating high crop field Attilem looks like an ideal solution to eradicate starvation and provide an alternative to diminishing oil reserves. But nothing is at it seems...

Grand-Jacques the postman watches a mysterious wicker basket slowly float down from the sky and discovers a baby holding a small bell, and the adventure starts.

The film chronicles Perceval's knighthood, maturation and eventual peerage amongst the Knights of the Round Table, and also contains brief episodes from the story of Gawain and the crucifixion of Christ.