Bromiley, Dalton, and Elan live on a secluded South Pacific island with their dad, Genn, when 1500 US Marines land in the closing days of WW II to build an airstrip. Genn doesn't like this "invasion" because his daughters, who have never before met eligible men, quickly become involved
with the handsome young guys from the States. Dad loses his little war, of course, to red-blooded youth. A natural for plenty of comedy, nicely handled by all concerned.