When Ruby Byrne and her children emigrate to Canada in 1920, love is the last thing she expects to find. But when widower Robert Kerr proposes, she is happy to accept. Cait is pleased for her mother, yet she can't help thinking about her former fiance, Trevor Thomas, back in Cardiff. Robert's son, Martin, is determined to win Cait as his bride, but is it fair to marry him when Trevor is still in her heart?