Charles Laughton plays Kidd, a merchant captain who cons the King of England into allowing him to take to the sea to recover a lost treasure and escort a ship back to London. An old fellow conspirator who he thought dead (John Carradine) and a mysterious young man (Randolph Scott) manage to get on board and cause problems for Kidd.

Zoo keeper Stooges try to capture an escaped kangaroo; the boys try to prevent an avalanche.

The Major boasts to the Adventurer's Club that he finally has a secret weapon to catch the elusive Snagglepuss. The weapon is Snuffles, a canine who will run any risk, brave any terrors, for a dog biscuit. But the Major's parsimony is his undoing. He gives Snuffles only half a dog biscuit.