ALLTV

The team must defuse three dirty bombs headed for unknown locations across the United States; one couple prepares for a wedding while another prepares for the end of their marriage.

The Unit

Unknown Soldier

While Jonas searches for a Russian terrorist cell, Molly is used as bait.

Endgame

Jonas and Bob find their carefully planned mission thrown into chaos by a random incident.

Chaos Theory

Members of the team are forced to hunt down one of their own when Sam attacks Bridget.

Whiplash

Bob is forced to run interference when the team's plans go awry; Jonas and Mack go under cover, looking for the terrorists who killed the vice president.

Best Laid Plans

The team tries to rescue Jonas' old friend but a broken helicopter gas tank and guerrillas impede the mission; Tom tries to get information from a recovering alcoholic whose husband might have been behind a terrorist attack.

Flesh & Blood

Unit members and their families are cut off from the outside world when a deadly gas seeps into their community, threatening to kill anyone who steps outdoors.

Hill 60

A new team member joins the unit; Jonas coaches Betsy before her media tour.

Hero

The president orders the team to apprehend a Nazi war criminal; Tom Ryan confronts his past after he is offered a promotion.

The Last Nazi

Jonas and seriously wounded Mack take refuge in a monastery where Jonas is ordered to steal the monks' most-prized possession.

The Spear of Destiny

Jonas plays a game of baccarat to win back the services of a CIA spy who went to the other side -- and to get court-martial charges against Bridget Sullivan dismissed.

Bad Beat

Jonas and the team force a Department of Defense official to go with them on an assignment and experience the realities of war; Kim and her children are secretly reunited.

Switchblade

Special forces operatives tackle missions around the world.

S4 E18 | Best Laid Plans

E22 | Unknown Soldier

E21 | Endgame

E20 | Chaos Theory

E19 | Whiplash

E18 | Best Laid Plans

E17 | Flesh & Blood

E16 | Hill 60

E15 | Hero

E14 | The Last Nazi

E13 | The Spear of Destiny

E12 | Bad Beat

E11 | Switchblade