Dani is about to endure the biggest ever adventure in his life: climbing to the top of the tree in their garden. All of a sudden, his father arrives crying. Dani's mother is dead. The boy cannot comprehend the words while his father breaks under their weight. As months go by, Dani tries, again and again, to find his way through the high walls his father has put up. When he finally understands that he has lost not only his mother but his father forever, he must decide whether to start down the path of grief as his father did or go upwards as planned.