The Spectre meets a foe who is as powerful as himself and works feverishly to overpower him before he can harm Clarice.; Crooks disguised as police detectives try to pull a scam on Dan.; Enemy spies, disguised as a British freighter, try to blow up the Panama Canal.; Wotan kidnaps Inza to get at Dr. Fate, so Fate goes after him in order to rescue her and seemingly kills him in the end.; Gabby disguises himself as Joyce's father as part of a trap for the assassins.; Derek Morely taunts the Squad with a list of murders he intends to carry out.; Bulldog Martin uses his invisibility powers to uncover the culprit behind the murder of Joe Morgan's uncle.; Carey investigates deaths caused by vampire bats.