Helen returns and claims that a predator from the future is behind a number of disappearances. Nick and Helen join together on a desperate race through time to prevent further attacks, and discover a shocking truth.
Greg is still trying to get back together with Cyd but she is unimpressed.
Elsewhere, Nadia shows off her Kylie concert tickets and Kelsey is desperate to go. However, Nadia invites Abs instead. He says he's too busy working, so she determines to get his shift changed.
