Emma's first rescue: She rescued Zane Bennett from certain drowning in the sunken wreck. Emma was also the first one of the three whom Zane saw as a mermaid. This is also significant in that Emma's 50 year counterpart, Louise, is the only one of those three known to have performed a marine rescue.
The boat central to this episode is named Lorelei, which is the name of a Mermaid-like girl in a German legend; the beautiful Lorelei was desired by all men except her one true love. Eventually forced to become a nun for her alleged lechery, she ultimately glimpses her love from a cliff over the Rhine and leaps over. In death Lorelei becomes a Siren, whose captivating song lures sailors to their death.