Season 4, Episode 18 End of the Line

First Aired: January 24, 1973

A high-wire performer's illness might kill her if she continues her career. Daphne: Lynn Marta. Boom: Dean Jagger. Gannon: Chad Everett. Ronnie: John Ritter. Juliet: Jeanette Nolan. Lochner: James Daly.