New York Metropolitan Transit Authority train dispatcher Walter Garber's day is turned upside down when he must face-off against Ryder, the criminal mind that has hijacked the passengers of subway train, Pelham 1-2-3. Ryder is the leader of a highly-armed gang of four, including a henchman who used to work for the MTA. NYPD Hostage Negotiator Detective Camonetti initially takes charge of the situation, but quickly realizes that Ryder will only deal...

The second season of this series includes Barbarino replacing Horshack in a school theater production, Freddie Washington becoming a smash on the radio, and the gang pitching in to help Epstein quit smoking. Mr. Kotter is there with a word of advice and a quick-witted quip for the Sweathogs as they learn both in and out of the classroom.