They are trapped on an elevated subway in Chicago, not an underground subway like here in New York City. If the power went out and the train stopped between stops, it wouldn't take HOURS for them to get help or wait for the power to come back on. Firefighters and other rescue teams would be there to help quickly and get them out of the train to either walk out or be cherry picked out.
The German episode title is "Das Weihnachtsgefühl", meaning "The Christmas Feeling".
Shawn Harrison (Waldo) doesn't appear in this episode, but he's credited, however.
S 2 : Ep 25
Aired 4/26/91 (24:00)
S 2 : Ep 24
Aired 4/25/91 (24:00)
S 2 : Ep 23
Aired 4/1/91 (24:00)
S 2 : Ep 22
Aired 3/22/91 (24:00)
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