Jonas is still in hiding, Mack and Hector are still imprisoned, Charles is on the run, Bob is in Mexico, working for the CIA and Colonel Ryan is again called to answer question before a Congressional hearing.

Jonas works out a plan and the team reunites to clear their reputation. Kim is working behind the scenes to keep the CIA away from the other wives.

The Unit is back together and ready to take on their next assignment when a bomb filled with a nerve agent stolen from a nearby base is discovered to be on its way to their home.



On the home front, Jonas and Molly make plans to spend time together, Mack is ordered to move out of his home, and Kim proposes a new show for the station but ends up handling a crisis.

The team travels to Abidjan, Ivory Coast to aid personnel from the American Embassy. They must get the Americans and their families out of the area.



On the home front, Jonass daughter has enlisted in the Army and he wants to train her as well as to test her resolve.

Jonas, Mack and Hector are assigned to recover a chip containing information that could prevent a possible terrorist attack.



On the home front, Kim is ordered to bed, which leaves Bob caring for the children. Tiffy is fired from her job and must find new employment.

Mack, Charles and Jonas are assigned to protect an American musician while she tours the army camps in Iraq. Bob is assigned to transfer a prisoner from a high-security prison.



On the home front, Hector is set up with one of Tiffy's co-workers, which has surprising consequences for Tiffy.

The Unit is in Lebanon when Charles is seriously wounded. They must think and act quickly to save his life.



On the Home Front, Tiffy's problems continue to build when a man she met at her job tows her car. The women stand up and fight to protect her.

Jonas goes on a solo mission, enlisting the help of some local militants to hunt down a terrorist known as "The Butcher". Charles is still recovering in the hospital, Mack takes on the task of arranging Hector's final funeral preparations, with the help of the other wives and Bob has been ordered to deal with the rescued journalist. Ryan must deal with the man sent by Washington to oversee the cover story.

Charles goes undercover among gang members from his old neighborhood when it's discovered that they've been stealing explosives and weapons. Meanwhile, Tiffy gets hurt and Mack goes after her attackers.

In Montenegro, Bob has a moral dilemma when he disagrees with the team's mission.



Tiffy discovers some information about Molly's past and decides to look into it further.

A Russian scientist and a British MI5 agent are suspected of collusion. Jonas is sent to London to team up with the agent. However, things get complicated as Jonas had been engaged to the agent's wife earlier.