In 1919, Terence and Molly Donahue are a husband-and-wife
vaudeville team. By 1923, their children Steve, Katy, and Tim have joined the act, with the troupe billed as The Five Donahues. As the children mature, Terence and Molly enroll them in a Catholic boarding school in
Boston. One Saturday, as their parents are performing, Steve and Tim attempt to leave but are caught by Father Dineen. The priest sends a telegram to Terence and Molly saying the boys miss their parents and performing, but says they are capable of becoming leaders. Molly, however, insists the children stay enrolled. The family moves to
New Jersey. In October 1929,
the stock market crashes and the theatre stock company drops the Donahues in favor of motion pictures. Terence and Molly take whatever jobs they can find, including performing a carnival act and singing radio advertisements. Before long, movie theaters begin providing live entertainment before screenings, and the Five Donahues are performing once again. In 1937, Tim has graduated from high school, Katy becomes a dancer, and Steve develops a talent for singing. After a live performance, Tim and Katy sneak out on separate dates at Gallagher's nightclub, worrying Molly and Terence. At the club, Tim dates older "
chorus girl" Lillian Sawyer while Katy dates Eddie Dugan. Tim meets with aspiring performer Victoria "Vicky" Hoffman who performs a solo number. Impressed, Tim arrives at Vicky's dressing room, and pretends to be a journalist for
Variety. Eddie and talent agent Lew Harris also arrive at the dressing room, where Vicky learns Tim is part of the Five Donahues. She dismisses him in favor of talking with Eddie and Lew. Back home, Steve tells the family he has decided to become a priest. Terence is disappointed at his son's decision, but their discussion is interrupted by Tim, who has returned home drunk. Eventually, the family comes to terms with Steve's decision, and throws him a farewell party. The troupe, now billed as The Four Donahues, accepts an engagement in Florida where Tim meets up with Vicky (now billed as Vicky Parker) during rehearsal. Tim allows her to perform a tropical-themed musical number that was to be performed by his family. Eventually, Tim falls in love with her, though Vicky declines his romantic advances. The next morning, Vicky calls the Donahues and tells them Lew Harris is arranging a Broadway show with her as the star. She wants Tim and Katy to join her. Molly, despite her prior irritation over Vicky using their tropical-themed number, agrees to let them do the show. During rehearsals, Katy begins dating Charlie Gibbs, the show's lyricist, and marries him after Steve has been ordained into the priesthood. Tim continues courting Vicky, but becomes angry when she arrives late for an evening dinner after disagreeing with Lew Harris over a costume change. Tim accuses Vicky of being romantically involved with Lew, gets drunk, and later gets into a car accident. Before opening night, Lew considers cancelling the show, but hires Molly to take Tim's place. Meanwhile, Terence visits Tim at the hospital where the two have an argument. The next morning, Molly and Terence arrive at the hospital to see Tim; however, the nurse hands them a note from Tim saying he has gone but with no indication of where he might be. Molly and Terence open a missing persons investigation and attend various nightclubs looking for him, to no avail. On the closing night of the
Hippodrome Theatre, Steve unexpectedly arrives backstage in the uniform of an Army chaplain. As he and Katy watch from the wings, Molly performs the film's title song. Moments before the song ends, Tim shows up wearing a
U.S. sailor uniform and is embraced by Katy, Steve and his parents. Tim reconciles with his family, and for the first time in years, the Five Donahues reunite for the elaborate finale. ==Cast==