Fact1: Hank Whirling needs bank loan to keep going, Fact2: Hank 's top act is Colino trapeze troupe featuring family patriarch Zach Colino and newcomer Tommy Gordon as well as Hans and Skeeter, Fact3: little sister has been training with Colino act for past year, Fact4: Hank manages to capture it with help of Colino, Fact5: Harrison and Sherman are infuriated by Whirling 's refusal to accept help
Output: Hank Whirling Mature needs a bank loan to keep his Whirling Circus going. He gets it from a stuffy New York City bank, but only on the condition he take along accountant Randy Sherman Red Buttons and publicist Helen Harrison Rhonda Fleming to help the circus turn a profit. Hanks top act is the Colino trapeze troupe, featuring family patriarch Zach Colino Gilbert Roland and newcomer Tommy Gordon David Nelson, as well as ringmaster Hans Vincent Price and clown Skeeter Peter Lorre. Unknown to Hank, his little sister Jeannie Kathryn Grant has held a lifelong ambition to fly on the trapeze and has been secretly training with the Colino act for the past year. An unknown saboteur sets a lion loose at a party thrown to celebrate the start of the circus season, terrifying the VIPs in attendance until Hank manages to capture it with the help of Colino. Helen accuses him of staging the incident for publicity. Subsequently, they discover the lions cage had been deliberately opened. Harrison and Sherman are infuriated by Whirlings refusal to accept their help. Hank and Helen clash over the best way to publicize the show; he feels she is intruding on his turf because he actually IS a very good publicist. Hank and Randy clash over Randys firing of 40 roustabouts and replacing them with a stakedriving machine that expedites raising the Big Top. The machine is sabotaged and sets a pile of hay on fire; only swift action by Hank keeps the main top from burning. Hank, Helen and Randy begin to wonder if a saboteur is riding with the show. The first section of the circus train derails en route to a new stand. Mama Colino Adele Mara, the shows den mother, is killed, leaving Zach Colino heartbroken. He loses his nerve and is unable to go on. As he is the star of the show and the shows publicity is built around him, this is a major disaster. Coupled with the foul weather they have been enduring for weeks that keeps the circus goers at home, the books are looking grim. Only glib talk by Sherman keeps the show on the road. Hank conceives a bold scheme. He will scrap the route he had laid out, do one show in Buffalo, New York, and then slip into New York City three weeks before the Borman Brothers Circus, from whom the Whirling show had broken away, and steal the audience from their rival. But to make his plan work, Whirling needs a major publicity splash. Helen proposes a stunt last performed in the 19th century: walking across the gorge at Niagara Falls. Hank goads Zach into making the wirewalk by calling him a coward. Colino swears that first he will walk the Falls, and then he will kill Hank. But after completing one of the most dangerous wire walks in history, Zach realizes Hank said what he said only to help him, and they reconcile. With the bank about to foreclose, Hank goes to television star Steve Allen to seek needed publicity for the circus. Allen buys the rights to broadcast the opening night performance in New York City for enough money to pay off the shows line of credit and enable it to go on. When the New York Police Department arrives on the lot looking for Tommy, the Colino Troupes catcher, and inform the shows management that Tommy is an escaped lunatic, Hank realizes that Tommy is the culprit behind the sabotage and Mama Colinos death. Jeannie Whirlings debut with the Colino Troupe almost becomes her final performance when Tommy deliberately misses a catch, but she manages to grab onto one of the climbing ropes. While fleeing from Zach Colino, Tommy falls to his death. Down below, Hank and Helen realize what has been obvious to everyone else in the circus: they are in love with each other.