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Unit Chief Jack Garrett and his international response team are called to Tanzania when a 23-member church group disappears.

When two casualties resemble the M.O. of the most notorious killer in Italian history, the International Response Team is called to investigate.

The International Response Team investigates the apparent suicide of an American in Colombia who emptied his bank account prior to his death.

The International Response Team head to South Korea when an American college student is found disfigured. Also, Simmons fulfills his mother’s last dying wish to find his grandmother.

The International Response Team investigates when two American entrepreneurs disappear while conducting business in Bangladesh.

When two American flight attendants go missing while in Singapore, the International Response Team is called in to investigate.

When a night of partying ends tragically for an American 18-year-old in Tijuana, the International Response Team is called to investigate.

When an American visiting Greece to get more involved in his family's business is found beaten in a rough part of Athens, the International Response Team is called to investigate.

The International Response Team is investigated by the FBI after a mission in Kurjikistan results in the death of a suspect.

The International Response Team is called to Taipei when it appears an American committed a crime that is similar to an unsolved case in New York.

When the body of an American singer is found on a rural road in the blue mountains of Jamaica, the International Response Team is called to investigate.

The IRT must find the murderer of a woman in Nepal who was at a yoga camp. Monty is on the field for the first time.

The International Response Team travels to Russia when an American ballerina is kidnapped, and Jack tangles with an ex-KBG agent who escaped from prison.