***SPOILERS*** It's when "Dapper Eddie" Higgins was gunned down at the 42nd street Commando Barber Shop in Midtwon Manhattan that an all out search was conducted by the NYPD for his girlfriend Linda Stephenson who's life was now not only in danger but who possessed a slew of document that can expose Higgins killer; His second in command John Cassidy. It's up to Det. Halloran to track down Linda and put her and the documents that "Dapper Eddie" gave her for safe keeping into protective custody. Finding Linda hiding out in her father, an old sea salt, Andy's lighthouse on New York Bay he's also surprised that he unknowingly lead Cassidy and his hoods, Sick Arch Brick & Grubber, straight to her!
We have Halloran Linda & Popa Andy barricaded upstairs in the lighthouse as Cassidy and his gang attempt to smoke them out and murder them before the calvary, NYPD, arrives. With only six bullets in his revolver Hollaron holds off the Cassidy mob killing two of them Grubber & Brick. It was the crazed and obsessive Brick who was so obsessed in killing Halloran who got the worst of it getting plugged by all his revolver's bullets as well as Andy's shotgun that finally put him to sleep forever. But it also left Halloran defenseless with no more ammunition to hold off Cassidy and his partner Sick Arch.
Tense climax with Halloran holding off Cassidy & Co. having them thinking that he was armed to the teeth in keeping them at bay. Not being all that bright to begin with Cassidy hearing the police sirens, that were really coming from the lighthouse's stereo system, he dropped his sub-machine gun giving Halloran all the help and time that he needed to get the cuffs on him and Sick Arch and then calling, on the lighthouse Jakie talkie, for help.