Sonic, Sonia, and Manic are the children of Queen Aleena Hedgehog, the rightful ruler of Mobius, and are pursued relentlessly by Doctor Robotnik and his bumbling bounty hunters sidekicks, Sleet and Dingo. As infants, the siblings were separated and placed in hiding to fulfill a prophecy made by the Oracle of Delphius that the triplets would grow up to find their estranged mother, overthrow Robotnik, and take their places once more as Mobius' rightful rulers.

In an Arctic village in 1931, British mapmaker Walter Russell selects 12-year-old Eskimo Avik as his guide. When the boy contracts tuberculosis, Walter flies him to a Montreal hospital, where Avik meets Albertine and is infatuated. A decade later, a grown Avik encounters Albertine again in London, where he's serving as a British combat pilot. Despite her relationship with Walter, she and Avik begin an affair.

Tino Mariano, an aspiring opera singer indebted to a Mob boss. Money is no object, but when you are in debt there's no turning back.