Border Security: Australia's Front Line - Season 11 Episode 4 -

An extreme sport holiday vacationer is being questioned by Security Border Officers after displaying unusual behaviour. - Flavoured Drinking powder packages don't look quite right. - An intercepted message by Immigration Officers reveals deception from a travelling woman with a tourist visa. - A family gets to snack on declared food not authorised into the country, before being let through customs. An other passenger isn't as lucky.