In the Gay '90s, Addie Schmidt, whose father runs a beer garden in Hoboken, is famous for singing sad songs. She loves Tom, who joins the Navy to free Cuba. Addie becomes a Broadway musical star, and Sid, her faithful guide among the bright lights of Broadway, is in love with her, as is James, a millionaire. When Tom returns from the Navy, there is an exciting battle on the roof of Madison Square, and all ends happily.