![](https://image.tmdb.org/t/p/w342/tc5VyBM94h8GJ3Z5MvyemSFiESO.jpg)
654.057 दृश्य
Dan Farrell (RS) runs into many dead ends as he endeavors to discover why an important scientist suddenly died.
पहिलो एयर मिति : Sep 20, 1968
अन्तिम एयर मिति : Mar 19, 1971
एपिसोड : 76 एपिसोड
सीजन : 3 सीजन
रनटाइम: 90 मिनेट
स्टुडियो: NBC
जात: