Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Five 0 investigate the murder of the headmaster of a private school sending Tani and Junior undercover as prospective parents. Meanwhile Adam is forced to produce a huge amount of hidden money to save his life.

Adam's mission to take down organized crime goes sideways when the bait he used falls into the wrong hands; Adam begins to doubt Jessie's allegiance.

A flashback about the case that changed Danny's life and an answer about who shot him by meeting a woman who was married to the shooter. Jimmy Buffett returns, Alex O'Loughlin directs his first episode and plays the guitar.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, Lori Weston entry to Five-O temporarily, how Catharine Rollins a girl friend of Steve and Captain Lou Grover, a former Chicago PD Head of SWAT.

Steve and Five-O take on the mob when a former boss is killed; Junior's friend is on the run after witnessing the murder. (#191)

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The team discovers a Russian spy ring hiding on Oahu, Hawaii U.S.A. when one of their submarines appears off the coast. (#193)