Kellett and the team reluctantly join an investigation in Northern Ireland, when one of Kellett's informants is arrested for his connection to a robbery and murder, and calls her to help clear his name.

The episode was rated 7.66 from 490 votes.

The Fly Team and Jaeger head to Berlin when the 19-year-old son of an American billionaire is found unresponsive in his apartment. As the team works to determine if foul play was involved, they realize there’s a shadowy group on the case as well.

The episode was rated 7.69 from 423 votes.

The team jets to Bulgaria when terrorists hold hostage for millions in cryptocurrency a concert hall filled with multinational student performers and their families. Raines is intent on proving his field skills, and Forrester receives news of their dog, Tank.

The episode was rated 7.71 from 460 votes.

The team jumps into action to protect Forrester when a Russian hit man seeks revenge on him; Raines is sent into a tailspin when someone close to him is taken.

The episode was rated 7.73 from 320 votes.

When an NYPD officer is detained in Transnistria for aggravated assault, the fly team investigates his claims of infiltrating a sex trafficking ring being concealed by those in power; Forrester receives an unusual message from an unknown sender.

The episode was rated 7.73 from 423 votes.

When Raines' sister goes missing in Kosovo, he goes rogue to find her, putting his job and his life on the line; Kellett and Forrester face further scrutiny from inside the bureau.

The episode was rated 7.74 from 423 votes.

When the abduction of an American architect in Rome appears to be connected to a brewing terror threat in New York City, FBI’s Jubal and Nina join Forrester and his Fly Team in Italy as they work together to find the missing American and shed light on the terrorists’ U.S. target. The crossover continues on FBI S05E17 Imminent Threat (II) and FBI: Most Wanted S04E16 Imminent Threat (III).

The episode was rated 7.75 from 366 votes.

When a local predator begins extorting underage American girls online, the team attempts to bring the offender to justice with on-site help from one of the victims; Kellett decides she should find a roommate.

The episode was rated 7.76 from 434 votes.

When a former U.S. Marine is detained in Istanbul on a charge of smuggling antiquities, the Fly Team races against the clock to organize her release before the Turkish police learn the truth behind her visit

The episode was rated 7.76 from 422 votes.

When a private jet carrying American citizens is shot down outside of a small town in Poland, the Fly Team looks into the man who missed the flight. Also, Forrester is conflicted when he receives information from his mother.

The episode was rated 7.76 from 408 votes.

The Fly Team, with the help of their new intel analyst, Special Agent Amanda Tate, works to clean up the pieces left behind after a massive explosion rocks headquarters and their key suspect slips away.

The episode was rated 7.77 from 262 votes.

The team races to find a kidnapped American teen in Austria as the clock ticks on Forrester's reassignment.

The episode was rated 7.79 from 361 votes.

When a Russian missile is stolen and put on the black market in Budapest, the Fly Team must secure the weapon before a mysterious American arms broker delivers it into the wrong hands.

The episode was rated 7.81 from 316 votes.

The team heads to Bulgaria in search of a wanted criminal who is exploiting underage American girls; Raines becomes curious when Forrester asks him to keep an eye on Powell.

The episode was rated 7.81 from 187 votes.

When an ex-FBI agent suddenly resurfaces in a brutal Tripoli prison, Forrester and Powell risk everything to go under cover as prisoners to break him out; the fly team adjusts to their new and improved HQ.

The episode was rated 7.82 from 234 votes.