Synopsis by Hal Erickson
Lucian Currie (Griffith Jones) approaches Peter Brady with a bizarre proposition: Currie intends to murder his partner in a gold mine, and he wants the invisible Brady to pull off the dirty deed. To bind the bargain, Currie threatens to unleash his vicious guard dog on Brady--who knows all too well that even an Invisible Man can be sniffed out by a dog. Highlights in this episode include the opening scene wherein Brady is "seen" mowing his lawn, and a brief moment in which the deadly dog appears to be attacking thin air. Appearing as Currie's hapless partner Vickers is Patrick Troughton of Doctor Who fame.