Following the enforcement teams at Heathrow Terminal 3, Calais, Dover.

A charismatic passenger stirs up conflict between the immigration staff, while customs officers target those smuggling animal products.

A suspected in a smash and grab heist at a jewelry store in Austria; officers play spot the imposter in Lagos, Nigeria.

At Heathrow's Terminal Three, officers stop a student from entering the UK after a trip home to his native India, while the team in Calais search lorries they suspect are being used to smuggle illegal immigrants.

Excess baggage in the form of six undocumented immigrants is coming in from Calais.