With national security in mind and at the behest of the Governor, McGarrett and Captain Grover set out to serve a warrant on a young computer hacker.
Monroe saves Charlie from a potentially nasty encounter, but Charlie refuses to give him an inch of trust. Miles and Rachel start planning a resistance movement against the Patriots. Neville deals with a problem regarding his boss.moreless
Rachel breaks Miles out taking Titas Andover's ill wife with them, leading to all the tribesmen bearing down on Wiloughby.
Neville devises a plan to infiltrate the ranks of the of the Patriots, Miles is captured by Titus Andover and Dr. Porter tries to revive Aaron.
Nikita decides that Division should accept a government mission to assassinate the President of Chad while he's in Paris, but Alex disagrees with the plan and refuses to be a part of the mission. Frustrated that Nikita is keeping secrets from the rest of the group, much like Percy did, Alex asks Birkoff to dig up secrets on Danforth to use as leverage in case the government tries to shut down Division. However, Alex and Birkhoff are stunned when they uncover a secret so big it could threaten Division's existence.moreless
Michael officially gives up his role as a field agent and resumes his previous role inside Division running Operations. After receiving some valuable information from Birkhoff, Nikita embarks on a secret mission that takes her into dangerous territory. When Michael, Alex, and Ryan discover what Nikita has planned, they follow her into Kosovo, and the result has serious repercussions for Division.moreless
A man who was injured years ago begins taking revenge on the police officers who caused his injuries, including Steve whose father was one of the officers responsible for his maiming.
The team is directed to investigate when a prostitute is murdered in a Congressman's home, who is nowhere to be found. Danny has his own drama as the custody hearing regarding Grace goes to court.moreless
Division intel reveals that a former Division agent, Markov, has reappeared after six years undercover and has become President of Uzbekistan, with plans to assassinate the President of the United States. Ryan reveals to his team that the president is already having doubts about Division's existence and has threatened to wipe them out if the public finds out about the secret agency. Nikita and Michael are furious that Ryan failed to reveal this information, and they are forced to come up with a way to save the president's life without alerting her to the life-threatening situation. Meanwhile, after Alex and Owen are caught in an explosion, an investigation leads them to believe that someone inside Division is responsible.moreless
When the actions of Five-0 almost result in an international incident, Lt. Governor Denning announces that one team member will lose their job.
When a busload of children go missing, Five-0 must rescue the children and find those responsible.
The team investgates the kidnapping of a teenager while Kono is being investigated by Internal affairs and a profiler is assigned to the team by the new governor.
Danny works to help clear Steve's name with the help of an old friend. Kono is under an internal affairs investigation and is on leave.