Mack's back on the beat

There are also matters of the heart to attend to - the last run ended with Mackenzie’s former fiance Glenn (Tai Hara) admitting he still had feelings for her, even though he's marrying his girlfriend Daisy (Andrea Demetriades).

- 

In tonight's opening episode, a scientist who was researching sharks is found dead on a boat.

However, Mack believes that it wasn’t an ocean predator that caused the expert's demise, but rather a coldblooded murderer.

Anna believes Return to Paradise does a great job of combing mysteries with character development.