Just the facts. Starring Jack Webb as Sgt. Joe Friday and Ben Alexander as Officer Frank Smith, "Dragnet" was the most popular detective series of the 1950s. It aired weekly on NBC from 1952 to 1959 in its first run and influenced countless police shows to come, including today's real life crime show "Cops." It spawned a movie version in 1954 and again in 1987 with Dan Aykroyd.Episode 1: A wave of thefts along a 10 block area of Wilshire Boulevard. Looks like the work of a kleptomaniac.Episode 2: A hit-and-run turns into murder when the victims die. A grandmother and grandson.Episode 3: An abandoned baby at a bus depot. Seven weeks old. No leads.Episode 4: Four-year-old twins are missing, last seen playing in the park. Distraught mother. Star Jack Webb directs.