Blake (Gareth Thomas) wants to get his hands on the stolen weapon Imipak, which is capable of dispensing destruction over great distances. Likewise anxious to gain control of Imipak, Servalan (Jacqueline Pearce) creates a clone of Blake as a means to her ends. Unfortunately for all concerned, the clone has his (or its) own agenda. Brian Croucher takes over from Stephen Greif in the role of Blake's perennial adversary, Travis. "Weapon" originally aired on January 23, 1979. ~ Hal Erickson, Rovi