 The episode sees Mark reveal that he only has 30 minutes before he has to leave for witness protection . He then tries to convince Kate to come with him . The storyline takes place between 6 : 30pm and 7 : 00pm , which is when Neighbours airs in Australia . The episode was filmed over two nights and Gordon told Fox that extra effort went into ensuring the continuity was " perfect . " Every minute had to be accounted for , including the commercial breaks and the time taken up by the actors walking from one house to another . Gordon commented that clocks and watches are used throughout the episode to keep the tension high . During an interview with a Channel 5 website reporter , Brewer said that filming the episode was similar to filming a regular episode of the soap , as the scenes were still shot out of order . She thought it was nice working in a short time period that did not jump from day to day . During the filming of the final scenes on location , the weather took a turn for the worse and it began to rain . However , Gordon added that it looked " spectacular and adds such an atmosphere . " 
