NCIS: Origins shocked viewers by having Gary Callahan the dog get stabbed in the line of duty - but did he survive? During the Tuesday, April 7, episode of the NCIS prequel, flashbacks shows how Gary came into Franks' (Kyle Schmid) life. Then in present time they were chasing a suspect when the dog is badly stabbed. The blade ultimately damaged several nerves controlling the movement in his hind legs, which made the vet work that he won't be able to walk again. The episode ended with scenes from Gary's induction ceremony vs.