Alberto and Isa, a young couple, have met up with their friend Martin to spend a day bicycling around the mountains. Martin wanders in search of Graellsia Isabellae, a rare species of butterfly that for the moment is evading him.
| Actor | Role |
|---|---|
 Martiño RivasNot listed | Not listed |
 Irene EscolarNot listed | Not listed |
 Tamar NovasNot listed | Not listed |