Life for the bike citizens is idyllic, until one day, a new and surprising gizmo, the gas engine, comes to town. What follows is a thrilling, hilarious adventure, that will see Speedy the mountain bike become the unwitting leader of a group of environmental activists, who are determined to stop the gas engine from polluting their unspoilt haven.
Comedy set in 1977, in which a renowned playwright (Alberto San Juan) tries to shoot a social protest drama starring a doldrums folk, former child star (Natalie Poza) and produced by a producer and shameless liar (Miguel Rellán). Inexperience, ambition, lack of means and the love-hate relationship with the star director shooting become a craze.
Rodrigo's life as a child was a noble and happy one, he entered school at a young age. Often he went on adventures with his best friend Sancho and often visited his beloved one Jimena, the daughter of the count of Gormaz. His happiness did not last forever, after the death of the King Fernando, Rodrigo is seen wrapped in a world of plots and conspiracies that to will put an end to the life of Sancho and the consequent coronation of the infant Alfonso. All of a sudden, Rodrigo loses all that that he has acquired, his best friend and the love of its beloved one, and is unjustly exiled to Castile without honor!
In an odd destiny coincidence and hospital employee reiceives some important and confident information from a dying old man. He shares it with one friend and both start a crazy and extravangant adventure.