The Mad Morgans are a family song and dance act touring the British music halls. Young Davy is the star of the act, but should he stay with his family or strike out on his own?The Mad Morgans are a family song and dance act touring the British music halls. Young Davy is the star of the act, but should he stay with his family or strike out on his own?The Mad Morgans are a family song and dance act touring the British music halls. Young Davy is the star of the act, but should he stay with his family or strike out on his own?