Six months have passed since Jason's hallucination episode. Jason has medically recovered and is leading the team again, Spenser is now Ray's replacement as second-in-command, and now an Explosives Ordnance Disposal Technician is recruited into the team. Their latest mission involves a hostage-rescue and bomb disposal mission on an oil platform in the Gulf of Guinea, which has been overrun by a new terrorist organization. Meanwhile, Ray contemplates joining another SEAL team after being rebuffed
The team is relocated to Saudi Arabia in order to stop a Shiite extremist group from deploying anthrax into a major aquifer, working alongside local troops. Meanwhile, Mandy works an operation in Mexico to find a D.E.A. agent before joining them. When there's a cave in inside the tunnel and lose communication with Jason and Sonny, the Saudi general wants to bomb the site. Clay and the rest of Bravo work to remove the debris while Jason and Sonny neutralize the terrorist threat, and manage to mak
Jason rushes to the hospital, only to learn that Alana has died. While holding a funeral for Alana, Jason is forced to step down as team leader to focus on his children, with fellow SEAL Adam Seaver taking his place. Jason's mother, Linda comes to help. Ray joins the rest of the team at Jason’s request and is deployed to Mumbai to rescue a foreign service officer, only to find out their hostage has been relocated.
While the team saves the foreign service officer in the hotel, they are given the additional task of rescuing hostages at a local university. Meanwhile, Jason resigns from Bravo Team in order to mend his relationship with his children.
After Adam is killed by a suicide bomber, Clay freezes up and Ray has to take charge. The team is forced to continue their hostage rescue, which they manage to do successfully while killing the terrorists. Afterwards, Clay steals a car to go back to pick up Adam's body. The CIA discovers a Pakistani politician backed up the attack, but since they won't get involved, Mandy gives the information to the locals. Meanwhile, Jason has to notify Adam’s widow, Victoria. Emma accompanies him and listens
Six weeks after their last mission, Bravo Team is deployed to Mexico in order to hunt down a drug cartel led by Andres Doza, who is responsible for killing a D.E.A. agent. While conducting a joint operation with the Mexican Marines led by Colonel Martinez, Jason makes the decision for his team to not pursue their high-value target after coming across a group of kidnapped civilians in a cartel safehouse. Mexican Marine Lieutenant Lopez, who is well-known in the neighborhood of their mission area,
Intelligence recovered from retrieved cell phones during the previous operation has Bravo Team surveilling a businessman tied to the cartel. However, the businessman is killed during the operation. To salvage the failure, Bravo Team conducts a successful kidnapping operation on the CEO of a modeling agency who is also currently affiliated with the cartel. During the aftermath of the operation, Clay confesses to Sonny about his break-up while Jason and Ray intervene in preventing Lopez’s surrende
Interrogation of the CEO leads Bravo Team to Doza's best friend and second-in-command, Luis Castillo. In order to draw him out of the shadows, the SEALs and Mexican Marines assault an improvised drug lab at a re-purposed pottery factory, disguising themselves as a rival cartel. The joint team is then tasked with a surveillance mission on Castillo in order to facilitate his apprehension. However, the team unknowingly drives into an ambush while tailing Castillo.
The SEALs, a wounded Colonel Martinez, and a wounded Castillo are forced to take shelter in a church while waiting for reinforcements led by Lieutenant Commander Blackburn and Lieutenant Lopez. Meanwhile, Mandy learns that her CISEN counterpart, Rita, is the unwilling mole responsible for leaking the SEAL operations to Doza. In the aftermath, Martinez succumbs to his wounds while Ray learns of Doza’s safehouse location during Castillo’s dying moments.
While raiding Doza’s safehouse, Bravo Team learns that Doza’s escape plan is to surrender himself into Mexican police custody for immunity in Chiapas while painting the SEALs as villains. Seeing this as a farce, Jason and Mandy use the 24-hour deadline for the SEALs' exit from Mexico as a last opportunity to raid Doza’s mansion. Bravo Team, with the aid of Lopez, successfully captures Doza, but is forced into a stand-off with the local Chiapas state police. Seeing no other option, Lopez executes
Bravo Team conducts a joint-operation with the British 22 SAS Regiment to rescue passengers of a plane, direct from Tunis to Barcelona, hijacked at Doha airport by an armed group of terrorists. Jason locks horns with the SAS' Sergeant Major before they find common ground. After negotiations fail, Jason's plan to blow the landing gear gives them the opening they need for a successful rescue. Clay hooks up with a girl in a bar while Sonny and Lisa sleep together.
Bravo Team is deployed from Turkey alongside the Syrian border in order to save an American woman, who was formerly an ISIS bride, held captive in a city mausoleum by numerous militants of the terrorist group. Meanwhile, Clay has a contentious reunion with his father, partly because of his work as a writer, and Sonny is disappointed to find out about Davis' aspirations for Officer Candidate School.
Bravo Team is extracted off the coast of North Korea after having located suspect Iranian cargo. As they reach the submarine, they must use the torpedo tubes to board, as the lock-out chamber is faulty. Sonny is last to be retrieved when the tube suffers a malfunction, trapping him inside. Unable to open the inner hatch to release him, the team plans to keep his spirits up when Sonny reports a serious leak. As a DPRK submarine heads towards them, the submarine runs ultra-quiet. With the tube flo
Emma is admitted into a prestigious New York art school, but Jason doesn't want her to go because he needs her help with Michael. Lisa tells Sonny a failed relationship is not worth losing their friendship. The team is sent to the Democratic Republic of Congo when a new warlord kills several Americans who were building a hospital. When they capture him, he offers them his boss, supposedly killed a year before. They track him to a house, but they can't confirm he's inside and the aerial attack of
Brett Swann, a former member of Bravo Team, comes to visit them. Bravo Team is sent on a special mission to eliminate the Hezbollah member behind several terrorist attacks. The problem is that he's going to be in a small town in Iran near the border of Afghanistan and they have to kill him from Afghanistan without crossing the border. Things get complicated when the terrorists change the meeting place and force them into a more exposed position, from which they're seen by two young boys who warn
After a "going-away" party is held for Lisa, Bravo Team is stationed in the Philippines to help train the local Filipino SEALs. They are then tasked with investigating an airplane crash on a remote island in the South China Sea to recover any high-value targets or hacking technology responsible for causing engineered ship and airplane crashes. Bravo Team successfully recovers the sole survivor of the plane crash and evades the investigating Chinese Special Forces team. During the aftermath, Ray
Bravo Team takes the Filipino Special Forces through a training raid on an oil rig. Davis has a panic attack during a firefighting drill. Bravo is drinking in a bar in Manila when a bomb goes off, and they treat the wounded. A second bomb goes off, severely injuring Clay who they stabilize before he is evacuated back to the US with life-threatening injuries. Mandy calmly gathers evidence from the scene.
Clay is recovering in hospital, but his right leg is badly injured, and he faces a long hard rehab if he is to make it back to the team. Despondent, he ignores messages from the team, but Swanny snaps him out of it, and Davis takes leave to visit him. Bravo team has been relocated to Guam to recuperate and is forced to see a psychiatrist, Jason's hook-up. Mandy has found the local group responsible for the bombings, but suspects there is more going on. Bravo team, backed up by the Filipinos, rai
Bravo Team is sent to recover the body of a United States Army Special Forces captain who was killed during an ambush by numerous Islamic terrorists in the savannah of southern Mali. Meanwhile, Clay accompanies Swann to the Veteran's Hospital, where he hopes to get his Traumatic Brain Injury diagnosed and treated. When the bureaucracy refuses, Swann shoots himself in the parking lot.
Clay works to change things so that what happened to Swann won't happen to anyone else. In the Guam base, tensions run high between Ray and Jason, who come to blows in a bar. To graduate from OCS, Lisa must retake the fire drill. She visits her sister and explains that, because she barely had time to save her, she couldn't go back for their younger sister, who died. She believes it was their alcoholic mother's fault for leaving them home alone. Lisa passes the test and graduates as Ensign, but f
Bravo Team wants to rescue Ray, who managed to deploy his reserve chute and land in hostile territory in northern Pakistan, but they are ordered to complete the primary mission. However, after having considered that his presence could lead to a serious diplomatic incident, Blackburn authorises a rescue mission. Stella visits Clay and they talk about Swann; Clay enlists his father, a former SEAL, in his campaign to get Swann a Purple Heart. Ray tries to stay alive while Bravo is on the way to fin
Commander Shaw orders Bravo Team to disband for failing to complete the mission, but Mandy manages to track Khan to an important meeting in Lahore and Bravo is the only team that can get there in time. They successfully assault the building from the roof while gathering evidence from the scene, capture Khan, and kill four highly wanted terrorists. The team returns to Virginia Beach, where they are greeted by friends and relatives before holding a funeral mass for Swann. The C.I.A. demotes Mandy