The team links a bizarre crime scene at Arlington National Cemetery to a string of attacks on homeless veterans; Vance orders McGee, Bishop and Torres to complete hours of evidence garage clean-up for withholding information.
Danny picks up a bodyguard job on the side, working for an ex-con who took the fall for someone else. Eddie and Jamie reflect on their relationship, while Gormley's wife makes a request.
Voight and the team step in to help Commander Perry extract his nephew from a corrupt unit; Lindsay struggles with staying clean; Olinsky is contacted by a woman from his past.
McGarrett and the team are captured while tracking a dangerous nemesis to the island of Lanai; Grover takes his son to Chicago, where he testifies against a dirty cop.