 Mark Brennan ( Scott McGregor ) waits nervously for an answer from his girlfriend , Kate Ramsay ( Ashleigh Brewer ) , about going into witness protection with him . He states that it is too dangerous for him to stay in Erinsborough and that she can bring her younger sister , Sophie ( Kaiya Jones ) , with them . Kate tells Mark that she does not want to lose him and agrees to go . Mark reveals that they only have half an hour and heads over to his house to pack . Sophie returns home and Kate tells her that they are leaving town that night . An upset Sophie explains that she cannot pack her life up in a bag and refuses to go . Kate tells her the decision has already been made and they are leaving . As Mark is wondering whether to call his parents , his housemate , Jade Mitchell ( Gemma Pranita ) , arrives home unexpectedly . When she enquires about his bag , he tells her he needs a change of clothes for a double shift . Kate finds Mark and asks for more time , but Mark tells her they do not have any . He gives her the details of the meeting point and they kiss , before Kate leaves him . 
