17-year-old Jimmy Walker is brutally beaten by Manny Cole and two of his teen-age punk friends, Joey and Al, because Manny wants to move in on Jimmy's girl, Carole Fields. Later, Jimmy shows up at the hangout of the teenage crowd to take Carole away, and challenges Manny to a fight. Manny's two buddies move in with brass knuckles, and one of them pulls a pistol, which falls to the ground in the scuffle. Jimmy picks it up and shoots Manny and Al.
Cully Briston is serving a 5 year sentence in an Arizona prison.He's not getting along well with the Sergeant of the guards who, on finding a bottle of moonshine near Cully, sends him to the isolation block.Arriving there Cully discovers that inmates have taken over the block and have taken the guards as hostages.Inmate Red Fraker is the leader of the revolt and asks Cully to join them in a mass escape.
Four seemingly-unrelated men board subway train Pelham 1:23 at successive stations. Mr. Blue, Mr. Green, Mr. Grey and Mr. Brown are heavily armed and overpower the motorman and novice conductor to take control of the train. Between stations they separate the front car from the remainder of the train, setting passengers in the back cars and the motorman free. The four demand $1 million ransom within exactly one hour for the remaining eighteen hostages, including the conductor. If their demands are not met in time or their directions are not followed precisely, they will begin to shoot hostages dead, one every minute the money is late.
In early afternoon, four armed men hijack a subway train in Manhattan. They stop on a slight incline, decoupling the first car to let the rest of the train coast back. Their leader is Ryder; he connects by phone with Walter Garber, the dispatcher watching that line. Garber is a supervisor temporarily demoted while being investigated for bribery. Ryder demands $10 million within an hour, or he'll start shooting hostages. He'll deal only with Garber. The mayor okays the payoff, the news of the hostage situation sends the stock market tumbling, and it's unclear what Ryder really wants or if Garber is part of the deal. Will hostages, kidnappers, and negotiators live through this?