An unknown assassin must be stopped, so Barney infiltrates the foreign agency that employs him while Jim poses as a drug addict with information to sell.
| Creator | Bruce Geller |
|---|---|
| Actor | Peter Graves, Greg Morris, Peter Lupus |
| Country | United States of America |
| Production | Desilu Productions |
| Season 1(28 episode) |
|---|
| Season 2(25 episode) |
| Season 3(25 episode) |
| Season 4(26 episode) |
| Season 5(23 episode) |
| Season 6(22 episode) |
| Season 7(22 episode) |
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