Two brothers who have not seen each other for years take a boating holiday, during which they come across a mysterious young woman.
| Actor | Role |
|---|---|
 Douglas HenshallBilly | Billy |
| DDan MullaneJohn | John |
 Jacqueline LeonardSara | Sara |
| EElliot Henderson-BoyleChild Billy | Child Billy |
 Ryan J-W SmithChild John | Child John |