Following wildlife that inhabits the famous American national park, a lost world of deep forests, vast plains and bubbling geysers. The first episode focuses on a variety of species as they struggle to survive the rigours of a freezing six-month winter, revealing that although the herds of elk and bison are weakened by the cold, one animal gets stronger - the wolf.
Era sui canali:
Civil War 
La ricerca della felicità 
Floopaloo 
Viaggio nel mercato nero 
