The Harmful One Unit Chief Jack Garrett and his International Response Team travel to Thailand when three American volunteers go missing during a trek to Bangkok, and reconnect with former colleague Clara Seger, who helps them rush to gather evidence leading to the UnSub before a storm threatens to wash it away.
Harvested When an American man attending a festival in Mumbai wakes up missing a kidney and his friend gone, the International Response Team's investigation leads them to suspect the UnSub is more than just trading organs on the Black Market.
Denial The International Response Team heads to Cairo when an Egyptian-American former U.S. serviceman is killed in a gas attack there and his friend goes missing.
Whispering Death The International Response Team travels to Japan, where the team assists local law enforcement to investigate a string of homicides made to look like suicides. Also, Mae tries to encourage Clara to get out and enjoy herself.
The Lonely Heart The International Response Team heads to Paris to search for an UnSub targeting Americans who live there.
Love Interrupted The International Response Team heads to Belize to search for a couple who disappears while on their honeymoon in what appears to be a targeted abduction.
Citizens Of The World The International Response Team travels to Morocco when a retired couple from Idaho is kidnapped while visiting the country on a cruise.
De Los Inocentes When a woman vacationing in Mexico with her family is the victim of foul play, the International Response Team investigates her husband as the prime suspect when he flees.
The Matchmaker When an American girl leaves home to meet her boyfriend in Turkey, the International Response Team suspects she's in trouble after being tricked by someone posing as her boyfriend.
Iqiniso When an American college student working in Johannesburg is killed and his brother goes missing, the International Response Team suspects a gang could be behind both. Jack works the case with Lieutenant Ananda Doshi, a profiler he's worked with before who has an unorthodox style of investigation.
The Ballad Of Nick And Nat When American victims are found in different locations throughout Cuba, the International Response Team heads to the island nation to search for possible spree killers.
El Toro Bravo The IRT heads to Pamplona, Spain during the running of the bulls. The ears of a missing American tourist are found and the team speculates that the crime is politically motivated.
Paper Orphans The International Response Team rushes to Haiti when the young daughter of an American family visiting the island nation is kidnapped. Also, Jack and his wife, Karen, prepare to send their daughter off to college.