Season 17, Episode 4 - "Rock Around the Clock"
An employee gives Roz and Bulldog his caving tickets because he is unable to use them. Bulldog is excited about trying something new, until Roz reveals that she has always been afraid of confined spaces. Bulldog encourages her to get over the fear by joining him, but a series of problems results in them becoming caved in. Bulldog tries to calm Roz down by keeping her mind focused on other things, and reveals the truth about her dad’s grandfather clock which mysteriously broke months ago. Roz is outraged, and Bulldog feels guilty after realising it had a large sentimental value for Roz. To make matters worse, it becomes apparent that rescue may not come overnight.
