Seasons & episodes
S4 · E2Sudden Flight 2008-10-05 · 45 min
The team follows a scientist who may have been targeted by terrorists, hoping to link those same terrorists to a presidential assassination plot.
S4 · E3Sex Trade 2008-10-12 · 45 min
While the Unit is investigating a man they believe to be smuggling nuclear weapons, they discover that he is also smuggling women.
S4 · E4The Conduit 2008-10-19 · 45 min
Bob and Mac both find themselves in trouble when they each take assignments undercover. Bob as a chemist who hides cocaine by converting it to paint and Mac as a fighter trying to bust an illegal betting ring.
S4 · E5Dancing Lessons 2008-10-26 · 45 min
A nuclear scientist insists on making a deal with the team before revealing information about an imminent terrorist attack on a major U.S. city; Kim, Molly and Tiffy are asked to work under cover with Jonas.
S4 · E6Inquisition 2008-11-02 · 45 min
Hoping to con a terrorist into exposing his accomplices before they escape, the team produces phony evidence of an attack.
S4 · E7Into Hell (1) 2008-11-09 · 45 min
The team travels to Iraq to save Jonas' daughter, who has been kidnapped; Col. Ryan must face the consequences for his adultery with Mack's wife.
S4 · E8Into Hell (2) 2008-11-16 · 45 min
The team keeps trying to rescue Betsy Blane from Syrian captors; Mack has an opportunity to get revenge on Ryan for his affair with Tiffy.
S4 · E9Shadow Riders 2008-11-23 · 45 min
Jonas and the team must travel through enemy territory to bring a young bride to her groom, preserving a truce between two warring Afghanistan tribes; Kim and Bob try to expose a man who is linked to terrorists.
S4 · E10Misled & Misguided 2008-11-30 · 45 min
The team's attempts to raid an anthrax lab are thwarted by an official from the Department of Defense (Michael McKean), who believes his high-tech intelligence is superior to field logic.
S4 · E11Switchblade 2008-12-21 · 45 min
Jonas and the team force a Department of Defense official to go with them on an assignment and experience the realities of war; A mysterious women shows up at Aerodyne headquarters. Kim is finally reunited with her kids.
S4 · E12Bad Beat 2009-01-04 · 45 min
Jonas plays a game of high stakes baccarat to win back the services of a CIA spy who has gone over to the other side. His success is also key in getting court martial charges against team member Bridget Sullivan dismissed.
S4 · E13The Spear of Destiny 2009-01-11 · 45 min
Jonas and a seriously wounded Mack take refuge in a monastery where he is ordered to steal the monks' most prized possession. Back home, Bob is asked to perform a dangerous mission that will reveal the darkest side of his job to Kim.
S4 · E14The Last Nazi 2009-02-15 · 45 min
The President orders the unit to capture a Nazi war criminal from his hiding place and deliver him to The Hague. In Washington, Tom Ryan confronts his past when he is offered a promotion to General
S4 · E15Hero 2009-03-08 · 45 min
The unit initiates a new team member while Jonas coaches his daughter Betsy, on how to respond to media questions about her kidnapping and rescue without blowing the cover story.
S4 · E16Hill 60 2009-03-15 · 45 min
Unable to communicate with the outside world, the Unit and their families must survive when a deadly gas poisons anyone in their community who steps outside.
S4 · E17Flesh and Blood 2009-03-22 · 45 min
As the Unit fights to rescue Jonas's old friend, a broken helicopter gas tank and nearby guerillas impede their mission. Meanwhile, Tom goes to extreme measures to extract information from a recovering alcoholic whose husband may have been behind a terrorist attack.
S4 · E18Best Laid Plans 2009-03-29 · 45 min
The mission's plans go awry and Bob must run interference when Jonas and Mack are undercover to find the terrorists who killed the Vice President.
S4 · E19Whiplash 2009-04-12 · 45 min
When Sam attacks Bridget, the other members of the Unit must hunt him down.
S4 · E20Chaos Theory 2009-04-26 · 45 min
A random incident throws Jonas and Bob's carefully planned mission into chaos.
S4 · E21Endgame 2009-05-03 · 45 min
Molly is kidnapped and used as bait, while Jonas is out of the country looking into a Russian terrorist cell.
S4 · E22Unknown Soldier 2009-05-10 · 45 min
When several dirty bombs are found on American soil, The Unit is deployed to find and diffuse. On the home front, the wives prepare for a wedding and a possible divorce.