Ranger?? the time-traveling golden retriever with search-and-rescue training?? joins an early twentieth-century expedition journeying from New Zealand to Antarctica. He befriends Jack Nin?? the stowaway turned cabin boy of Captain Robert Falcon Scott's ship. They're racing against a rival explorer to reach the South Pole?? but with unstable ice?? killer whales?? and raging blizzards?? the journey turns into a race against time... and a struggle to stay alive.