An Australian girl's arrival on a flight from the UK raises suspicions at Dublin airport, while Passport and Immigration Officers are faced with a family from Ghana.

Dublin Port security handle a foreign truck that is illegally parked and traffic officers pull over a van driver whose day goes from bad to worse as the misdemeanours mount up.

The Disney cruise ship arrives in Ireland for the first time, but such a high-profile arrival makes it a target for terrorists and puts the Dublin security team on high alert.

An American man loses his passport on his way from central Europe to Ireland, while a Mexican lady claims she's visiting her brother, but has little evidence to back up her story.

Traffic cops in Dublin pull over a driver suspected of drug offences, while a teenager arrives from France, travelling alone and unable to find those she is meant to be meeting.

Armed police in Cork hunt for illegal immigrants trying to get into Ireland and officers in Dublin deal with a brother and sister from Hong Kong who claim to be visiting a relative.

At Cork Airport, officer James O'Hearne has to deal with a passenger who has no passport and no form of identification. Dublin's traffic officers pull over a car that's been brought across the border from the UK, suspecting it is a dangerous vehicle. And at Dublin airport a Chinese lady who's just arrived from Toronto, faces being deported.

At Cork Airport's Passport and Immigration, Officers Noel Maxwell and James O'Hearne's are put on high alert when they get a hit on the Interpol Database for a woman who has just arrived from Spain. Officers from Dublin Police's traffic division are involved in a high-speed pursuit of a stolen vehicle before it can be shipped across the border. And officers have to deal with a potentially explosive incident near Dublin Airport.