At first Trapper is not concerned when an old friend starts to behave erratically, but Gonzo suspects that something is wrong, especially when the doctor freezes during an emergency.
| Creator | Don Brinkley |
|---|---|
| Actor | Pernell Roberts, Gregory Harrison, Madge Sinclair |
| Country | N/A |
| Production | 20th Century Fox Television |
| Season 1(22 episode) |
|---|
| Season 2(18 episode) |
| Season 3(25 episode) |
| Season 4(22 episode) |
| Season 5(22 episode) |
| Season 6(23 episode) |
| Season 7(19 episode) |
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