This program, in the form of a quiz show, encourages viewers to use their mind to reason. Two Johns Hopkins University engineering freshmen, Karvel Rose and Robert Abernethy, and two arts and sciences freshmen, Michael Kelley and Pudge Ellwood, are the contestants. Walter Millis, Jr. is the scorekeeper, and Dr. Eliezer Naddor, Johns Hopkins professor of industrial engineering, asks the questions and explains the answers to eight puzzles.