When the unit is stranded with high-priority prisoners in Waziristan, they take refuge at a forward support base, but a CO who's not in command and a cocky sergeant not only jeopardize the mission but everyone's lives as well.
While in Israel to work out a solution to a suicide bomber threat, Charles falls for a soldier who takes him into danger. At home, Tiffy finds herself in a windfall and a crisis of conscience as she struggles to do what's right.
Bob and Hector find themselves involved in tribal rituals when they are sent to Papua New Guinea to retrieve equipment; back at the base, Jonas and Mack deal with Crystal's revenge and its threat to the team.
While Mack, Grey and Williams protect a Thai prince and his family on American soil, they stumble across palace intrigue, temptation, and plots inside the treacherous family that involve infidelity and murder. Can they save the Prince from his own murderous clan as well as from the external assassination attempts? Against Ryan's better judgment, a battle-worn Jonas joins Bob on a mission to bring down a terrorist leader. But after a dangerous parachute jump from over 40,000 feet, a mid-air malfunction changes Jonas' number-one mission to saving Bob's life.
The Team's world collapses when they return from a successful mission to discover The Unit has been shut down and all Unit members are under governmental investigation for secret misdeeds of the past. This is no security drill, no training exercise: it's the real thing, and it's a noose around the neck of every Team member. The men learn The Unit will be disbanded and the men, court-martial ed; Ryan relieved of command and retired in disgrace, and the community that Molly and the other women have worked so hard to build will be shattered and scattered to the wind.
Nerve gas is stolen and the team is sent to retrieve it - a task made more complicated when it goes airborne and the pilot is dead. Back at home, Mack and Tiffy have domestic issues that require Col. Ryan's interference.
Bob, Williams and Grey are charged with rescuing a group of Embassy personnel and their families who are under attack in Abidjan, while Jonas tests his daughter's strength and conviction when she decides to enlist.
Mack begins to bond with a hostage who may need to be sacrificed to save operatives' lives. Back at the base, Bob is distracted from training exercises when Kim is put on bed rest, and Tiffy resorts to an uncomfortable job when her past affects her future.
Jonas, Mack and Charles guard a spoiled singer in Iraq, and Bob is charged with surrendering a foreign prisoner to his country for execution. At the base, Hector pursues a waitress, aided by the women.
When Charles is injured while the team rescues a journalist Jonas must try to save his life and still keep the mission on track, but it may not be enough. Back at home, Tiffy is victimized by a patron of the bar.
Jonas is asked to turn on an old friend, and things get complicated when Charlotte Canning reappears; at home, Kim fields a call from a depressed army wife who won't give up her location, and Charles feels guilty when he turns to Annie for comfort.