Officer James O'Hearne has to deal with a passenger who has no passport and no form of identification, while a Chinese lady who has just arrived from Toronto faces being deported.
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.
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.
An Indian man and his daughter without the required paperwork risk being refused entry to Ireland, while a woman is caught with several suspicious items in the boot of her vehicle.
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.
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.
