Flamboyant circus owner Hank Twirling maintains that his is the ‘greatest show on earth’, although he has had to borrow heavily to save his obsession from bankruptcy. But even more ominous is the presence of a mystery saboteur who will stop at nothing to see the show killed off for good…, The owner of a foundering circus is beset by financial woes and a saboteur, who causes not only setbacks but, ultimately, death., Behold the world’s bravest wire-walker! Marvel at the human cannonball! Thrill to the awesome elephants and the man-eating lions! Step right up and see all the big acts under the big top in The Big Circus!, A disaster-plagued circus struggles to survive in this exciting drama. The owner desperately needs a loan, but before he can get one, a stern banker must inspect the place. Somehow the fellow ends up as a clown and flying around on a trapeze. Disasters such as a fire, an escaped wild animal, heavy storms, and other problems keep things exciting. Though not a major hit, it was well done and represents an early effort from noted producer Irwin Allen who also wrote the screenplay., Hank Whirling has to borrow money to keep his circus on the road while also facing sabotage plots from a rival show., Flamboyant circus owner Hank Twirling maintains that his is the ‘greatest show on earth’, although he has had to borrow heavily to save his obsession from bankruptcy. But even more ominous is the presence of a mystery saboteur who will stop at nothing to see the show killed off for good., Victor Mature is a circus owner struggling with a financial trouble on the road as well as a murderous saboteur who insists the show must not go on.