1939. In Sydney, Australia teenager Cathy lives happily with her family in Sydney, Australia oblivious of the onset of WWII in Europe. In England, young Tom, devastated when his mother leaves the family home in Leeds, is determined to enlist as soon as he is of age. When, in 1941, he joins the Royal Navy, he is sent to the Far East on an important mission and, after months rescuing airmen shot down from the skies, his ship sails south to Sydney allowing the men a short respite. In one of Sydney's popular ballrooms Tom meets dance teacher, Cathy with whom he falls desperately in love and it soon becomes obvious they are destined to be together. But what are their chances of keeping their romance alive when it is inevitable that, once the war is over, Tom must sail back to England? Will Cathy agree to follow him? Only time will tell.