Tessa witnesses the murder of artist Anne Wheeler (Diana Barrington) but police refuse to investigate because they found no body. Investigating the murder on their own, Tessa and MacLeod are targeted by the murderer, who MacLeod realizes is Immortal.
When police do discover Wheeler's body and put Tessa under protection, a bomb is planted at the safe house and MacLeod saves Tessa from the explosion. MacLeod discovers that the murderer is Chief of Police Andrew Ballin.