The teens' end-of-year rafting trip goes horribly wrong; Callum's future with Toadie falls under threat and mysterious newcomers arrive on Ramsay Street.

Karl, Susan and Rachel struggle to deal with Zeke's disappearance; Bridget's need to find her birth parents intensifies and Donna's hostility to her siblings melts when she realises they too are victims.

The revelation of Zeke's secret life rocks his family and friends; Rebecca teaches Paul a lesson about being a prisoner of the past and will Ringo and Donna's relationship survive Donna's lies?

Karl's desperation starts to worry his family and friends; Steph accuses Ty of taking advantage of Rachel but he proves he's for real and Donna gets some surprising help to win Ringo back.

Susan and Karl face their nightmare; Lucas and Elle's differences threaten to tear them apart; and Toadie tries to come to terms with Kelly's sense, but is their relationship beyond repair?

Susan joins the hunt for Zeke; Donna makes a new friend - then tragedy strikes; and Simon tries to thwart Paul's designs on Cass.

Ringo is torn between his two worlds; Rebecca is afraid the cracks in her feelings for Andrew are beginning to show; and Bridget pushes Ty to realise his fear of failing.

Jilted Cass seeks revenge on Paul; Zeke's new identity is threatened; and Donna says goodbye to her siblings.