The Sportsmaster returns with a mad scheme to end all sporting events in Gotham City unless the city is willing to pay protection money to the "Crime Syndicate of Sports"!; Hop and Tank save the Princess of Royalia from a double-brossing Baron who is after the Royal jewels.; A bride and groom nearly perish on their way to an island by the Moldau River God, a ruse to prevent them from discovering a huge buried treasure stored there.; A clever crook and his gang, using a helium-elevated dog sled, raids the National Security offices of $1 million in securities.