Lino is a little lion who does not know what courage is, he has not discovered it yet. He is an impulsive cub. While he is wandering in the middle of the forest with his friends, not far from his little house, running around, without even realising it, he suddenly finds himself alone. Wilma the Fox, Gaia the Giraffe and Lena the Snail are no longer there to keep him company, almost always on the back of Ernesto the elephant. There is only one door in front of him, which Lino does not know whether to go through or not. In the end, however, they all find each other.