In WW I dancer Jerry Jones stages an all-soldier show on Broadway, called Yip Yip Yaphank. Wounded in the War, he becomes a producer. In WW II his son Johnny Jones, who was before his fathers assistant, gets the order to stage a knew all-soldier show, called THIS IS THE ARMY. But in his pesonal life he has problems, because he refuses to marry his fiancée until the war is over.
An illiterate stooge in a traveling medicine show wanders into a strange town and is picked up on a vagrancy charge. The town's corrupt officials mistake him for the inspector general whom they think is traveling in disguise. Fearing he will discover they've been pocketing tax money, they make several bungled attempts to kill him.
Tom and Ellen are asked to perform as a dance team in England at the time of Princess Elizabeth's wedding. As brother and sister, each develops a British love interest, Ellen with Lord John Brindale and Tom with dancer Anne Ashmond.
Jimmy, the owner of a failed music shop, goes to work with his uncle, the owner of a food factory. Before he gets there, he befriends an Irish family who happens to be his uncle's worst enemy because of their love for music and in-house band who constantly practices. Soon, Jimmy finds himself trying to help the band by getting them gigs and trying to reconcile the family with his uncle.