McGarrett must prove his second-in-command, Danno, is innocent of shooting an unarmed teenage suspect.
McGarrett and his squad must protect a crime boss, facing prosecution, from a society of Japanese assassin.
McGarrett must make sure his key witness, a mobster's associate, lives to testify against the crime kingpin.
After an aging baroness disappears, her two nephews become key suspects in a surprise-filled case that pits McGarrett against a serial killer.
