We stole the Cascabel circus recipe. Unable to finance the return trip by boat, the troupe is definitively retained in San Francisco - The son Cascabel finds the solution: the acrobats will go up North America to the icebergs of Bering Strait and will cross the steppes of Asia. For Caesar Cascabel and his troupe then begins an extraordinary journey to a thousand dangers, where shamans, secret agents, arctic tribes and wild beasts meet.