As a string of break in assaults grows more violent, the cops investigate an online incel group to identify a suspect.
Rollins (Kelli Giddish) races to rescue a girl being held captive by her father (guest star Ray McKinnon).
When a member of the Reagan clan is shot, Danny tries to track down the gang member responsible, without letting his emotions get the best of him. Also, he must get creative in order to bring in witnesses.
Holmes and Watson join forces with Holmes' father, Morland (John Noble), to enlist his vast criminal network to help disassemble tech billionaire Odin Reichenbach's crime prevention system.
When a Navy SEAL, who's on the run for a murder he swears he didn't commit, takes hostages and safe haven aboard the U.S.S. Missouri memorial battleship, McGarrett must use every SEAL skill in his arsenal to diffuse the situation.
