The S-1, which is the answer to every child's question: How does Santa deliver all those presents in just one night, travels seven million miles around the world delivering the gifts. Meanwhile, Arthur gets a letter from a girl from 23 Mimosa Avenue, Trelew, Cornwall, England, saying that she wants a Pink Twinkle Bike for Christmas.
The big hi-tech sleigh, the S-1 is to deliver two billion presents on Santa's (Jim Broadbent's) seventieth mission.