Mission: Impossible - Season 2 Episode 3 : The Survivors 1973

Two scientists and their wives have been kidnapped by enemy agent Eric Stavak. If Stavak doesn't get ahold of a third scientist, the other two are useless and will be killed. If he gets the third, than Stavak will have the key to an ""ultimate weapon"" project. Phelps and Cinnamon pretend to be the third scientist and his wife and alllow themselves to be kidnapped and taken to the other two scientists and their wives. Phelps predicts an upcoming earthquake, which the IMF team goes to work and fake-implements. Phelps digs out an escape route through a storm drain, only to be shoved aside by Stavak and his henchmen as they make their escape. While Jim leads everyone out of a perfectly-working elevator, Stavak and the others are captured as they emerge onto a perfectly-intact San Francisco street.