Stranded at sea, Joan decides to head for a nearby island to try and get help, and is pursued by Rita, intent on killing her as revenge for Slasher's death. However, Nancy is determined to stop her - and Joan turns out to be the one who has to save Rita's life in the end. On the boat, Roach is falling for Mick and decides that she isn't going back with the others. Back in Wentworth, Kath throws her weight around with the other girls.
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