The cameras follow Ireland's border force as they attempt to stop gangs of organised smugglers from bringing drugs into the country.
A family travelling from Lithuania are intercepted while smuggling 40,000 cigarettes. Elsewhere, a package of counterfeit MAC makeup products are discovered by the team.
A shipment of potentially lethal, knockoff Disney jackets are uncovered by the team. Meanwhile, a member of the airport staff bids a tearful farewell as she leaves for pastures new following a promotion.
At a vehicle checkpoint, a truck driver's trailer is found to have a long list of dangerous faults, meanwhile a woman travelling from Hong Kong runs into trouble with the language barrier.
Officers pursue a drunk driver who failed to stop after being involved in a collision. Elsewhere, a double med-evac is required on a mid-Atlantic cruise.
Police give chase to a driver who is spotted making an abrupt U-turn as he approaches a checkpoint. Meanwhile, two men from Brazil raise suspicions at Immigration Control due to their convoluted route of travel and a motorcycle courier runs into trouble when he is found without a valid license or insurance.